-P\bPo\bos\bst\btf\bfi\bix\bx b\bbe\bef\bfo\bor\bre\be-\b-q\bqu\bue\beu\bue\be M\bMi\bil\blt\bte\ber\br s\bsu\bup\bpp\bpo\bor\brt\bt
+Postfix before-queue Milter support
-------------------------------------------------------------------------------
-I\bIn\bnt\btr\bro\bod\bdu\buc\bct\bti\bio\bon\bn
+Introduction
Postfix implements support for the Sendmail version 8 Milter (mail filter)
protocol. This protocol is used by applications that run outside the MTA to
* Workarounds
* Limitations
-H\bHo\bow\bw M\bMi\bil\blt\bte\ber\br a\bap\bpp\bpl\bli\bic\bca\bat\bti\bio\bon\bns\bs p\bpl\blu\bug\bg i\bin\bnt\bto\bo P\bPo\bos\bst\btf\bfi\bix\bx
+How Milter applications plug into Postfix
The Postfix Milter implementation uses two different lists of mail filters: one
list of filters for SMTP mail only, and one list of filters for non-SMTP mail.
Local -> sendmail(1)
-B\bBu\bui\bil\bld\bdi\bin\bng\bg M\bMi\bil\blt\bte\ber\br a\bap\bpp\bpl\bli\bic\bca\bat\bti\bio\bon\bns\bs
+Building Milter applications
Milter applications have been written in C, JAVA and Perl, but this document
deals with C applications only. For these, you need an object library that
Once libmilter is installed, applications such as OpenDKIM and OpenDMARC build
out of the box without requiring any tinkering:
- $ g\bgz\bzc\bca\bat\bt o\bop\bpe\ben\bnd\bdk\bki\bim\bm-\b-x\bx.\b.y\by.\b.z\bz.\b.t\bta\bar\br.\b.g\bgz\bz |\b| t\bta\bar\br x\bxf\bf -\b-
- $ c\bcd\bd o\bop\bpe\ben\bnd\bdk\bki\bim\bm-\b-x\bx.\b.y\by.\b.z\bz
- $ .\b./\b/c\bco\bon\bnf\bfi\big\bgu\bur\bre\be .\b..\b..\b.o\bop\bpt\bti\bio\bon\bns\bs.\b..\b..\b.
- $ m\bma\bak\bke\be
+ $ gzcat opendkim-x.y.z.tar.gz | tar xf -
+ $ cd opendkim-x.y.z
+ $ ./configure ...options...
+ $ make
[...lots of output omitted...]
- $ m\bma\bak\bke\be i\bin\bns\bst\bta\bal\bll\bl
+ $ make install
-R\bRu\bun\bnn\bni\bin\bng\bg M\bMi\bil\blt\bte\ber\br a\bap\bpp\bpl\bli\bic\bca\bat\bti\bio\bon\bns\bs
+Running Milter applications
To run a Milter application, see the documentation of the filter for options. A
typical command looks like this:
- # /\b/s\bso\bom\bme\be/\b/w\bwh\bhe\ber\bre\be/\b/o\bop\bpe\ben\bnd\bdk\bki\bim\bm -\b-l\bl -\b-u\bu u\bus\bse\ber\bri\bid\bd -\b-p\bp i\bin\bne\bet\bt:\b:p\bpo\bor\brt\btn\bnu\bum\bmb\bbe\ber\br@\b@l\blo\boc\bca\bal\blh\bho\bos\bst\bt .\b..\b..\b.o\bot\bth\bhe\ber\br
- o\bop\bpt\bti\bio\bon\bns\bs.\b..\b..\b.
+ # /some/where/opendkim -l -u userid -p inet:portnumber@localhost ...other
+ options...
Please specify a userid value that isn't used for other applications (not
"postfix", not "www", etc.).
-C\bCo\bon\bnf\bfi\big\bgu\bur\bri\bin\bng\bg P\bPo\bos\bst\btf\bfi\bix\bx
+Configuring Postfix
Like Sendmail, Postfix has a lot of configuration options that control how it
talks to Milter applications. Besides global options that apply to all Milter
* Milter protocol version
* Milter protocol timeouts
* Different settings for different Milter applications
+ * Different settings for different SMTP clients
* Sendmail macro emulation
* What macros will Postfix send to Milters?
-S\bSM\bMT\bTP\bP-\b-O\bOn\bnl\bly\by M\bMi\bil\blt\bte\ber\br a\bap\bpp\bpl\bli\bic\bca\bat\bti\bio\bon\bns\bs
+SMTP-Only Milter applications
The SMTP-only Milter applications handle mail that arrives via the Postfix
smtpd(8) server. They are typically used to filter unwanted mail, and to sign
The general syntax for listening sockets is as follows:
- u\bun\bni\bix\bx:\b:pathname
+ unix:pathname
Connect to the local UNIX-domain server that is bound to the specified
pathname. If the smtpd(8) or cleanup(8) process runs chrooted, an
absolute pathname is interpreted relative to the Postfix queue
directory.
- i\bin\bne\bet\bt:\b:host:\b:port
+ inet:host:port
Connect to the specified TCP port on the specified local or remote
host. The host and port can be specified in numeric or symbolic form.
NOTE: Postfix syntax differs from Milter syntax which has the form
- i\bin\bne\bet\bt:\b:port@\b@host.
+ inet:port@host.
-N\bNo\bon\bn-\b-S\bSM\bMT\bTP\bP M\bMi\bil\blt\bte\ber\br a\bap\bpp\bpl\bli\bic\bca\bat\bti\bio\bon\bns\bs
+For advanced configuration see "Different settings for different SMTP clients"
+and "Different settings for different Milter applications".
+
+Non-SMTP Milter applications
The non-SMTP Milter applications handle mail that arrives via the Postfix
sendmail(1) command-line or via the Postfix qmqpd(8) server. They are typically
non_smtpd_milters application REJECTs or TEMPFAILs a recipient, Postfix will
report a configuration error, and mail will stay in the queue.
-S\bSi\big\bgn\bni\bin\bng\bg i\bin\bnt\bte\ber\brn\bna\bal\bll\bly\by-\b-g\bge\ben\bne\ber\bra\bat\bte\bed\bd b\bbo\bou\bun\bnc\bce\be m\bme\bes\bss\bsa\bag\bge\bes\bs
+Signing internally-generated bounce messages
Postfix normally does not apply content filters to mail that is generated
internally such as bounces or Postmaster notifications. Filtering internally-
4 header_checks = don't reject internally-generated bounces
5 body_checks = don't reject internally-generated bounces
-M\bMi\bil\blt\bte\ber\br e\ber\brr\bro\bor\br h\bha\ban\bnd\bdl\bli\bin\bng\bg
+Milter error handling
The milter_default_action parameter specifies how Postfix handles Milter
application errors. The default action is to respond with a temporary error
See "Different settings for different Milter applications" for advanced
configuration options.
-M\bMi\bil\blt\bte\ber\br p\bpr\bro\bot\bto\boc\bco\bol\bl v\bve\ber\brs\bsi\bio\bon\bn
+Milter protocol version
As Postfix is not built with the Sendmail libmilter library, you may need to
configure the Milter protocol version that Postfix should use. The default
version is 6 (before Postfix 2.6 the default version is 2).
/etc/postfix/main.cf:
- # Postfix >= 2.6
+ # Postfix ≥ 2.6
milter_protocol = 6
- # 2.3 <= Postfix <= 2.5
+ # 2.3 ≤ Postfix ≤ 2.5
milter_protocol = 2
If the Postfix milter_protocol setting specifies a too low version, the
See "Different settings for different Milter applications" for advanced
configuration options.
-M\bMi\bil\blt\bte\ber\br p\bpr\bro\bot\bto\boc\bco\bol\bl t\bti\bim\bme\beo\bou\but\bts\bs
+Milter protocol timeouts
Postfix uses different time limits at different Milter protocol stages. The
table shows the timeout settings and the corresponding protocol stages (EOH =
end of headers; EOM = end of message).
- _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b
- |P\bPo\bos\bst\btf\bfi\bix\bx p\bpa\bar\bra\bam\bme\bet\bte\ber\br |T\bTi\bim\bme\be l\bli\bim\bmi\bit\bt|M\bMi\bil\blt\bte\ber\br p\bpr\bro\bot\bto\boc\bco\bol\bl s\bst\bta\bag\bge\be |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ _________________________________________________________________
+ |Postfix parameter |Time limit|Milter protocol stage |
+ |______________________|__________|_______________________________|
|milter_connect_timeout|30s |CONNECT |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |______________________|__________|_______________________________|
|milter_command_timeout|30s |HELO, MAIL, RCPT, DATA, UNKNOWN|
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |______________________|__________|_______________________________|
|milter_content_timeout|300s |HEADER, EOH, BODY, EOM |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |______________________|__________|_______________________________|
Beware: 30s may be too short for Milter applications that do lots of DNS
lookups. However, if you increase the above timeouts too much, remote SMTP
See "Different settings for different Milter applications" for advanced
configuration options.
-D\bDi\bif\bff\bfe\ber\bre\ben\bnt\bt s\bse\bet\btt\bti\bin\bng\bgs\bs f\bfo\bor\br d\bdi\bif\bff\bfe\ber\bre\ben\bnt\bt M\bMi\bil\blt\bte\ber\br a\bap\bpp\bpl\bli\bic\bca\bat\bti\bio\bon\bns\bs
+Different settings for different Milter applications
The previous sections list a number of Postfix main.cf parameters that control
time limits and other settings for all Postfix Milter clients. This is
content_timeout, default_action, and protocol.
Inside the list, syntax is similar to what we already know from main.cf: items
-separated by space or comma. There is one difference: y\byo\bou\bu m\bmu\bus\bst\bt e\ben\bnc\bcl\blo\bos\bse\be a\ba
-s\bse\bet\btt\bti\bin\bng\bg i\bin\bn p\bpa\bar\bre\ben\bnt\bth\bhe\bes\bse\bes\bs,\b, a\bas\bs i\bin\bn "\b"{\b{ n\bna\bam\bme\be =\b= v\bva\bal\blu\bue\be }\b}"\b",\b, i\bif\bf y\byo\bou\bu w\bwa\ban\bnt\bt t\bto\bo h\bha\bav\bve\be s\bsp\bpa\bac\bce\be o\bor\br
-c\bco\bom\bmm\bma\ba w\bwi\bit\bth\bhi\bin\bn a\ba v\bva\bal\blu\bue\be o\bor\br a\bar\bro\bou\bun\bnd\bd "\b"=\b="\b".
+separated by space or comma. There is one difference: you must enclose a
+setting in parentheses, as in "{ name = value }", if you want to have space or
+comma within a value or around "=".
+
+Different settings for different SMTP clients
+
+The smtpd_milter_maps feature supports different Milter settings for different
+client IP addresses. Lookup results override the the global smtpd_milters
+setting, and have the same syntax. For example, to disable Milter settings for
+local address ranges:
+
+/etc/postfix/main.cf:
+ smtpd_milter_maps = cidr:/etc/postfix/smtpd_milter_map
+ smtpd_milters = inet:host:port, { inet:host:port, ... }, ...
+
+/etc/postfix/smtpd_milter_map:
+ # Disable Milters for local clients.
+ 127.0.0.0/8 DISABLE
+ 192.168.0.0/16 DISABLE
+ ::/64 DISABLE
+ 2001:db8::/32 DISABLE
+
+This feature is available with Postfix 3.2 and later.
-S\bSe\ben\bnd\bdm\bma\bai\bil\bl m\bma\bac\bcr\bro\bo e\bem\bmu\bul\bla\bat\bti\bio\bon\bn
+Sendmail macro emulation
Postfix emulates a limited number of Sendmail macros, as shown in the table.
Some macro values depend on whether a recipient is rejected (rejected
EOM = end-of-message); their availability is not always the same as in
Sendmail. See the workarounds section below for solutions.
- _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b
- |S\bSe\ben\bnd\bdm\bma\bai\bil\bl m\bma\bac\bcr\bro\bo |M\bMi\bil\blt\bte\ber\br p\bpr\bro\bot\bto\boc\bco\bol\bl s\bst\bta\bag\bge\be |D\bDe\bes\bsc\bcr\bri\bip\bpt\bti\bio\bon\bn |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |i |DATA, EOH, EOM |Queue ID, also Postfix |
- | | |queue file name |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |j |Always |Value of myhostname |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |_ |Always |The validated client name |
- | | |and address |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{auth_authen} |MAIL, DATA, EOH, EOM |SASL login name |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{auth_author} |MAIL, DATA, EOH, EOM |SASL sender |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{auth_type} |MAIL, DATA, EOH, EOM |SASL login method |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{client_addr} |Always |Remote client IP address |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- | | |Connection concurrency for|
- | | |this client (zero if the |
- |{client_connections}|CONNECT |client is excluded from |
- | | |all smtpd_client_* |
- | | |limits). |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- | | |Remote client hostname |
- | | |When address -> name |
- |{client_name} |Always |lookup or name -> address |
- | | |verification fails: |
- | | |"unknown" |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{client_port} |Always (Postfix >=2.5) |Remote client TCP port |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- | | |Client name from address -|
- |{client_ptr} |CONNECT, HELO, MAIL, DATA|> name lookup |
- | | |When address -> name |
- | | |lookup fails: "unknown" |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{cert_issuer} |HELO, MAIL, DATA, EOH, |TLS client certificate |
- | |EOM |issuer |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{cert_subject} |HELO, MAIL, DATA, EOH, |TLS client certificate |
- | |EOM |subject |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{cipher_bits} |HELO, MAIL, DATA, EOH, |TLS session key size |
- | |EOM | |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{cipher} |HELO, MAIL, DATA, EOH, |TLS cipher |
- | |EOM | |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{daemon_addr} |Always (Postfix >=3.2) |Local server IP address |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{daemon_name} |Always |value of |
- | | |milter_macro_daemon_name |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{daemon_port} |Always (Postfix >=3.2) |Local server TCP port |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{mail_addr} |MAIL |Sender address |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{mail_host} |MAIL (Postfix >= 2.6, |Sender next-hop |
- | |only with smtpd_milters) |destination |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{mail_mailer} |MAIL (Postfix >= 2.6, |Sender mail delivery |
- | |only with smtpd_milters) |transport |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- | | |Recipient address |
- |{rcpt_addr} |RCPT |With rejected recipient: |
- | | |descriptive text |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- | | |Recipient next-hop |
- |{rcpt_host} |RCPT (Postfix >= 2.6, |destination |
- | |only with smtpd_milters) |With rejected recipient: |
- | | |enhanced status code |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- | | |Recipient mail delivery |
- |{rcpt_mailer} |RCPT (Postfix >= 2.6, |transport |
- | |only with smtpd_milters) |With rejected recipient: |
- | | |"error" |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |{tls_version} |HELO, MAIL, DATA, EOH, |TLS protocol version |
- | |EOM | |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
- |v |Always |value of milter_macro_v |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
-
-W\bWh\bha\bat\bt m\bma\bac\bcr\bro\bos\bs w\bwi\bil\bll\bl P\bPo\bos\bst\btf\bfi\bix\bx s\bse\ben\bnd\bd t\bto\bo M\bMi\bil\blt\bte\ber\brs\bs?\b?
+ _________________________________________________________________________________________________________________________________________
+ |Sendmail macro |Milter protocol stage |Description |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |i |DATA, EOH, EOM |Queue ID, also Postfix queue file name |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |j |Always |Value of myhostname |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |_ |Always |The validated client name and address |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{auth_authen} |MAIL, DATA, EOH, EOM |SASL login name |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{auth_author} |MAIL, DATA, EOH, EOM |SASL sender |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{auth_type} |MAIL, DATA, EOH, EOM |SASL login method |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{client_addr} |Always |Remote client IP address |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{client_connections}|CONNECT |Connection concurrency for this client (zero if the client is |
+ | | |excluded from all smtpd_client_* limits). |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ | | |Remote client hostname |
+ |{client_name} |Always |When address → name lookup or name → address verification fails:|
+ | | |"unknown" |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{client_port} |Always (Postfix ≥2.5) |Remote client TCP port |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{client_ptr} |CONNECT, HELO, MAIL, DATA |Client name from address → name lookup |
+ | | |When address → name lookup fails: "unknown" |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{cert_issuer} |HELO, MAIL, DATA, EOH, EOM |TLS client certificate issuer |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{cert_subject} |HELO, MAIL, DATA, EOH, EOM |TLS client certificate subject |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{cipher_bits} |HELO, MAIL, DATA, EOH, EOM |TLS session key size |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{cipher} |HELO, MAIL, DATA, EOH, EOM |TLS cipher |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{daemon_addr} |Always (Postfix ≥3.2) |Local server IP address |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{daemon_name} |Always |value of milter_macro_daemon_name |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{daemon_port} |Always (Postfix ≥3.2) |Local server TCP port |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{mail_addr} |MAIL |Sender address |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{mail_host} |MAIL (Postfix ≥ 2.6, only with smtpd_milters)|Sender next-hop destination |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{mail_mailer} |MAIL (Postfix ≥ 2.6, only with smtpd_milters)|Sender mail delivery transport |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{rcpt_addr} |RCPT |Recipient address |
+ | | |With rejected recipient: descriptive text |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{rcpt_host} |RCPT (Postfix ≥ 2.6, only with smtpd_milters)|Recipient next-hop destination |
+ | | |With rejected recipient: enhanced status code |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{rcpt_mailer} |RCPT (Postfix ≥ 2.6, only with smtpd_milters)|Recipient mail delivery transport |
+ | | |With rejected recipient: "error" |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |{tls_version} |HELO, MAIL, DATA, EOH, EOM |TLS protocol version |
+ |____________________|_______________________________________________|____________________________________________________________________|
+ |v |Always |value of milter_macro_v |
+ |____________________|_______________________________________________|____________________________________________________________________|
+
+What macros will Postfix send to Milters?
Postfix sends specific sets of macros at different Milter protocol stages. The
sets are configured with the parameters as shown in the table below (EOH = end
receive at different Milter protocol stages. An application-specified list
takes precedence over a Postfix-specified list.
- _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b
- |P\bPo\bos\bst\btf\bfi\bix\bx p\bpa\bar\bra\bam\bme\bet\bte\ber\br |M\bMi\bil\blt\bte\ber\br p\bpr\bro\bot\bto\boc\bco\bol\bl|M\bMi\bil\blt\bte\ber\br p\bpr\bro\bot\bto\boc\bco\bol\bl s\bst\bta\bag\bge\be|
- | |v\bve\ber\brs\bsi\bio\bon\bn | |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ ___________________________________________________________________
+ |Postfix parameter |Milter protocol|Milter protocol stage|
+ | |version | |
+ |_____________________________|_______________|_____________________|
|milter_connect_macros |2 or higher |CONNECT |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_____________________________|_______________|_____________________|
|milter_helo_macros |2 or higher |HELO/EHLO |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_____________________________|_______________|_____________________|
|milter_mail_macros |2 or higher |MAIL FROM |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_____________________________|_______________|_____________________|
|milter_rcpt_macros |2 or higher |RCPT TO |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_____________________________|_______________|_____________________|
|milter_data_macros |4 or higher |DATA |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_____________________________|_______________|_____________________|
|milter_end_of_header_macros |6 or higher |EOH |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_____________________________|_______________|_____________________|
|milter_end_of_data_macros |2 or higher |EOM |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_____________________________|_______________|_____________________|
|milter_unknown_command_macros|3 or higher |unknown command |
- |_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_____________________________|_______________|_____________________|
By default, Postfix will send only macros whose values have been updated with
information from main.cf or master.cf, from an SMTP session (for example; SASL
zero or more name=value pairs separated by comma or whitespace; you may even
specify macro names that Postfix does know about!
-W\bWo\bor\brk\bka\bar\bro\bou\bun\bnd\bds\bs
+Workarounds
* To avoid breaking DKIM etc. signatures with an SMTP-based content filter,
update the before-filter SMTP client in master.cf, and add a line with "-
* Some Milter applications use the "{if_addr}" macro to recognize local mail;
this macro does not exist in Postfix. Workaround: use the "{daemon_addr}"
- (Postfix >= 3.2) or "{client_addr}" macro instead.
+ (Postfix ≥ 3.2) or "{client_addr}" macro instead.
* Some Milter applications log a warning that looks like this:
o Edit the filter source file (typically named xxx-filter/xxx-filter.c or
similar).
- o Look up the mlfi_eom() function and add code near the top shown as b\bbo\bol\bld\bd
+ o Look up the mlfi_eom() function and add code near the top shown as bold
text below:
dfc = cc->cctx_msg;
assert(dfc != NULL);
- /\b/*\b* D\bDe\bet\bte\ber\brm\bmi\bin\bne\be t\bth\bhe\be j\bjo\bob\bb I\bID\bD f\bfo\bor\br l\blo\bog\bgg\bgi\bin\bng\bg.\b. *\b*/\b/
- i\bif\bf (\b(d\bdf\bfc\bc-\b->\b>m\bmc\bct\btx\bx_\b_j\bjo\bob\bbi\bid\bd =\b==\b= 0\b0 |\b||\b| s\bst\btr\brc\bcm\bmp\bp(\b(d\bdf\bfc\bc-\b->\b>m\bmc\bct\btx\bx_\b_j\bjo\bob\bbi\bid\bd,\b, J\bJO\bOB\bBI\bID\bDU\bUN\bNK\bKN\bNO\bOW\bWN\bN)\b) =\b==\b= 0\b0)\b)
- {\b{
- c\bch\bha\bar\br *\b*j\bjo\bob\bbi\bid\bd =\b= s\bsm\bmf\bfi\bi_\b_g\bge\bet\bts\bsy\bym\bmv\bva\bal\bl(\b(c\bct\btx\bx,\b, "\b"i\bi"\b")\b);\b;
- i\bif\bf (\b(j\bjo\bob\bbi\bid\bd !\b!=\b= 0\b0)\b)
- d\bdf\bfc\bc-\b->\b>m\bmc\bct\btx\bx_\b_j\bjo\bob\bbi\bid\bd =\b= j\bjo\bob\bbi\bid\bd;\b;
- }\b}
+ /* Determine the job ID for logging. */
+ if (dfc->mctx_jobid == 0 || strcmp(dfc->mctx_jobid, JOBIDUNKNOWN) == 0)
+ {
+ char *jobid = smfi_getsymval(ctx, "i");
+ if (jobid != 0)
+ dfc->mctx_jobid = jobid;
+ }
NOTES:
o This change fixes only the ugly message header, but not the WARNING
message. Fortunately, many Milters log that message only once.
-L\bLi\bim\bmi\bit\bta\bat\bti\bio\bon\bns\bs
+Limitations
This section lists limitations of the Postfix Milter implementation. Some
limitations will be removed as the implementation is extended over time. Of
* The Milter protocol has evolved over time. Therefore, different Postfix
versions implement different feature sets.
- _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b
- |P\bPo\bos\bst\btf\bfi\bix\bx|S\bSu\bup\bpp\bpo\bor\brt\bte\bed\bd M\bMi\bil\blt\bte\ber\br r\bre\beq\bqu\bue\bes\bst\bts\bs |
- |_\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ ________________________________________________________________________
+ |Postfix|Supported Milter requests |
+ |_______|________________________________________________________________|
| 2.6 |All Milter requests of Sendmail 8.14.0 (see notes below). |
- |_\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_______|________________________________________________________________|
| |All Milter requests of Sendmail 8.14.0, except: |
| |SMFIP_RCPT_REJ (report rejected recipients to the mail filter), |
| 2.5 |SMFIR_CHGFROM (replace sender, with optional ESMTP parameters), |
| |SMFIR_ADDRCPT_PAR (add recipient, with optional ESMTP |
| |parameters). |
- |_\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_______|________________________________________________________________|
| 2.4 |All Milter requests of Sendmail 8.13.0. |
- |_\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_______|________________________________________________________________|
| 2.3 |All Milter requests of Sendmail 8.13.0, except: |
| |SMFIR_REPLBODY (replace message body). |
- |_\b _\b _\b _\b _\b _\b _\b _\b|_\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b _\b |
+ |_______|________________________________________________________________|
* For Milter applications that are written in C, you need to use the Sendmail
libmilter library.
for arbitrary macros that Postfix may send to Milter applica-
tions.
+ Available in Postfix version 3.2 and later:
+
+ <b><a href="postconf.5.html#smtpd_milter_maps">smtpd_milter_maps</a> (empty)</b>
+ Lookup tables with Milter settings per remote SMTP client IP
+ address.
+
<b>GENERAL CONTENT INSPECTION CONTROLS</b>
- The following parameters are applicable for both built-in and external
+ The following parameters are applicable for both built-in and external
content filters.
Available in Postfix version 2.1 and later:
ing, or address mapping.
<b>EXTERNAL CONTENT INSPECTION CONTROLS</b>
- The following parameters are applicable for both before-queue and
+ The following parameters are applicable for both before-queue and
after-queue content filtering.
Available in Postfix version 2.1 and later:
<b><a href="postconf.5.html#smtpd_authorized_xforward_hosts">smtpd_authorized_xforward_hosts</a> (empty)</b>
- What remote SMTP clients are allowed to use the XFORWARD fea-
+ What remote SMTP clients are allowed to use the XFORWARD fea-
ture.
<b>SASL AUTHENTICATION CONTROLS</b>
Postfix SASL support (<a href="http://tools.ietf.org/html/rfc4954">RFC 4954</a>) can be used to authenticate remote SMTP
- clients to the Postfix SMTP server, and to authenticate the Postfix
- SMTP client to a remote SMTP server. See the <a href="SASL_README.html">SASL_README</a> document for
+ clients to the Postfix SMTP server, and to authenticate the Postfix
+ SMTP client to a remote SMTP server. See the <a href="SASL_README.html">SASL_README</a> document for
details.
<b><a href="postconf.5.html#broken_sasl_auth_clients">broken_sasl_auth_clients</a> (no)</b>
- Enable interoperability with remote SMTP clients that implement
+ Enable interoperability with remote SMTP clients that implement
an obsolete version of the AUTH command (<a href="http://tools.ietf.org/html/rfc4954">RFC 4954</a>).
<b><a href="postconf.5.html#smtpd_sasl_auth_enable">smtpd_sasl_auth_enable</a> (no)</b>
Enable SASL authentication in the Postfix SMTP server.
<b><a href="postconf.5.html#smtpd_sasl_local_domain">smtpd_sasl_local_domain</a> (empty)</b>
- The name of the Postfix SMTP server's local SASL authentication
+ The name of the Postfix SMTP server's local SASL authentication
realm.
<b><a href="postconf.5.html#smtpd_sasl_security_options">smtpd_sasl_security_options</a> (noanonymous)</b>
Postfix SMTP server SASL security options; as of Postfix 2.3 the
- list of available features depends on the SASL server implemen-
+ list of available features depends on the SASL server implemen-
tation that is selected with <b><a href="postconf.5.html#smtpd_sasl_type">smtpd_sasl_type</a></b>.
<b><a href="postconf.5.html#smtpd_sender_login_maps">smtpd_sender_login_maps</a> (empty)</b>
- Optional lookup table with the SASL login names that own the
+ Optional lookup table with the SASL login names that own the
sender (MAIL FROM) addresses.
Available in Postfix version 2.1 and later:
<b><a href="postconf.5.html#smtpd_sasl_exceptions_networks">smtpd_sasl_exceptions_networks</a> (empty)</b>
- What remote SMTP clients the Postfix SMTP server will not offer
+ What remote SMTP clients the Postfix SMTP server will not offer
AUTH support to.
Available in Postfix version 2.1 and 2.2:
<b><a href="postconf.5.html#smtpd_sasl_application_name">smtpd_sasl_application_name</a> (smtpd)</b>
- The application name that the Postfix SMTP server uses for SASL
+ The application name that the Postfix SMTP server uses for SASL
server initialization.
Available in Postfix version 2.3 and later:
<b><a href="postconf.5.html#smtpd_sasl_path">smtpd_sasl_path</a> (smtpd)</b>
Implementation-specific information that the Postfix SMTP server
- passes through to the SASL plug-in implementation that is
+ passes through to the SASL plug-in implementation that is
selected with <b><a href="postconf.5.html#smtpd_sasl_type">smtpd_sasl_type</a></b>.
<b><a href="postconf.5.html#smtpd_sasl_type">smtpd_sasl_type</a> (cyrus)</b>
- The SASL plug-in type that the Postfix SMTP server should use
+ The SASL plug-in type that the Postfix SMTP server should use
for authentication.
Available in Postfix version 2.5 and later:
Available in Postfix version 2.11 and later:
<b>smtpd_sasl_service (smtp)</b>
- The service name that is passed to the SASL plug-in that is
+ The service name that is passed to the SASL plug-in that is
selected with <b><a href="postconf.5.html#smtpd_sasl_type">smtpd_sasl_type</a></b> and <b><a href="postconf.5.html#smtpd_sasl_path">smtpd_sasl_path</a></b>.
<b>STARTTLS SUPPORT CONTROLS</b>
- Detailed information about STARTTLS configuration may be found in the
+ Detailed information about STARTTLS configuration may be found in the
<a href="TLS_README.html">TLS_README</a> document.
<b><a href="postconf.5.html#smtpd_tls_security_level">smtpd_tls_security_level</a> (empty)</b>
- The SMTP TLS security level for the Postfix SMTP server; when a
+ The SMTP TLS security level for the Postfix SMTP server; when a
non-empty value is specified, this overrides the obsolete param-
eters <a href="postconf.5.html#smtpd_use_tls">smtpd_use_tls</a> and <a href="postconf.5.html#smtpd_enforce_tls">smtpd_enforce_tls</a>.
<b><a href="postconf.5.html#smtpd_sasl_tls_security_options">smtpd_sasl_tls_security_options</a> ($<a href="postconf.5.html#smtpd_sasl_security_options">smtpd_sasl_security_options</a>)</b>
- The SASL authentication security options that the Postfix SMTP
+ The SASL authentication security options that the Postfix SMTP
server uses for TLS encrypted SMTP sessions.
<b><a href="postconf.5.html#smtpd_starttls_timeout">smtpd_starttls_timeout</a> (see 'postconf -d' output)</b>
during TLS startup and shutdown handshake procedures.
<b><a href="postconf.5.html#smtpd_tls_CAfile">smtpd_tls_CAfile</a> (empty)</b>
- A file containing (PEM format) CA certificates of root CAs
+ A file containing (PEM format) CA certificates of root CAs
trusted to sign either remote SMTP client certificates or inter-
mediate CA certificates.
<b><a href="postconf.5.html#smtpd_tls_CApath">smtpd_tls_CApath</a> (empty)</b>
- A directory containing (PEM format) CA certificates of root CAs
+ A directory containing (PEM format) CA certificates of root CAs
trusted to sign either remote SMTP client certificates or inter-
mediate CA certificates.
<b><a href="postconf.5.html#smtpd_tls_always_issue_session_ids">smtpd_tls_always_issue_session_ids</a> (yes)</b>
- Force the Postfix SMTP server to issue a TLS session id, even
- when
TLS session caching is turned off (<a href="postconf.5.html#smtpd_tls_session_cache_database">smtpd_tls_ses</a>-
+ Force the Postfix SMTP server to issue a TLS session id, even
+ when
TLS session caching is turned off (<a href="postconf.5.html#smtpd_tls_session_cache_database">smtpd_tls_ses</a>-
<a href="postconf.5.html#smtpd_tls_session_cache_database">sion_cache_database</a> is empty).
<b><a href="postconf.5.html#smtpd_tls_ask_ccert">smtpd_tls_ask_ccert</a> (no)</b>
Ask a remote SMTP client for a client certificate.
<b><a href="postconf.5.html#smtpd_tls_auth_only">smtpd_tls_auth_only</a> (no)</b>
- When TLS encryption is optional in the Postfix SMTP server, do
+ When TLS encryption is optional in the Postfix SMTP server, do
not announce or accept SASL authentication over unencrypted con-
nections.
File with the Postfix SMTP server RSA certificate in PEM format.
<b><a href="postconf.5.html#smtpd_tls_exclude_ciphers">smtpd_tls_exclude_ciphers</a> (empty)</b>
- List of ciphers or cipher types to exclude from the SMTP server
+ List of ciphers or cipher types to exclude from the SMTP server
cipher list at all TLS security levels.
<b><a href="postconf.5.html#smtpd_tls_dcert_file">smtpd_tls_dcert_file</a> (empty)</b>
File with the Postfix SMTP server DSA certificate in PEM format.
<b><a href="postconf.5.html#smtpd_tls_dh1024_param_file">smtpd_tls_dh1024_param_file</a> (empty)</b>
- File with DH parameters that the Postfix SMTP server should use
+ File with DH parameters that the Postfix SMTP server should use
with non-export EDH ciphers.
<b><a href="postconf.5.html#smtpd_tls_dh512_param_file">smtpd_tls_dh512_param_file</a> (empty)</b>
- File with DH parameters that the Postfix SMTP server should use
+ File with DH parameters that the Postfix SMTP server should use
with export-grade EDH ciphers.
<b><a href="postconf.5.html#smtpd_tls_dkey_file">smtpd_tls_dkey_file</a> ($<a href="postconf.5.html#smtpd_tls_dcert_file">smtpd_tls_dcert_file</a>)</b>
Enable additional Postfix SMTP server logging of TLS activity.
<b><a href="postconf.5.html#smtpd_tls_mandatory_ciphers">smtpd_tls_mandatory_ciphers</a> (medium)</b>
- The minimum TLS cipher grade that the Postfix SMTP server will
+ The minimum TLS cipher grade that the Postfix SMTP server will
use with mandatory TLS encryption.
<b><a href="postconf.5.html#smtpd_tls_mandatory_exclude_ciphers">smtpd_tls_mandatory_exclude_ciphers</a> (empty)</b>
- Additional list of ciphers or cipher types to exclude from the
- Postfix SMTP server cipher list at mandatory TLS security lev-
+ Additional list of ciphers or cipher types to exclude from the
+ Postfix SMTP server cipher list at mandatory TLS security lev-
els.
<b><a href="postconf.5.html#smtpd_tls_mandatory_protocols">smtpd_tls_mandatory_protocols</a> (!SSLv2, !SSLv3)</b>
- The SSL/TLS protocols accepted by the Postfix SMTP server with
+ The SSL/TLS protocols accepted by the Postfix SMTP server with
mandatory TLS encryption.
<b><a href="postconf.5.html#smtpd_tls_received_header">smtpd_tls_received_header</a> (no)</b>
Request that the Postfix SMTP server produces Received: message
- headers that include information about the protocol and cipher
- used, as well as the remote SMTP client CommonName and client
+ headers that include information about the protocol and cipher
+ used, as well as the remote SMTP client CommonName and client
certificate issuer CommonName.
<b><a href="postconf.5.html#smtpd_tls_req_ccert">smtpd_tls_req_ccert</a> (no)</b>
- With mandatory TLS encryption, require a trusted remote SMTP
+ With mandatory TLS encryption, require a trusted remote SMTP
client certificate in order to allow TLS connections to proceed.
<b><a href="postconf.5.html#smtpd_tls_wrappermode">smtpd_tls_wrappermode</a> (no)</b>
- Run the Postfix SMTP server in the non-standard "wrapper" mode,
+ Run the Postfix SMTP server in the non-standard "wrapper" mode,
instead of using the STARTTLS command.
<b><a href="postconf.5.html#tls_daemon_random_bytes">tls_daemon_random_bytes</a> (32)</b>
- The
number of pseudo-random bytes that an <a href="smtp.8.html"><b>smtp</b>(8)</a> or <a href="smtpd.8.html"><b>smtpd</b>(8)</a>
- process requests from the <a href="tlsmgr.8.html"><b>tlsmgr</b>(8)</a> server in order to seed its
+ The
number of pseudo-random bytes that an <a href="smtp.8.html"><b>smtp</b>(8)</a> or <a href="smtpd.8.html"><b>smtpd</b>(8)</a>
+ process requests from the <a href="tlsmgr.8.html"><b>tlsmgr</b>(8)</a> server in order to seed its
internal pseudo random number generator (PRNG).
<b><a href="postconf.5.html#tls_high_cipherlist">tls_high_cipherlist</a> (see 'postconf -d' output)</b>
The OpenSSL cipherlist for "export" or higher grade ciphers.
<b><a href="postconf.5.html#tls_null_cipherlist">tls_null_cipherlist</a> (eNULL:!aNULL)</b>
- The OpenSSL cipherlist for "NULL" grade ciphers that provide
+ The OpenSSL cipherlist for "NULL" grade ciphers that provide
authentication without encryption.
Available in Postfix version 2.5 and later:
<b><a href="postconf.5.html#smtpd_tls_fingerprint_digest">smtpd_tls_fingerprint_digest</a> (md5)</b>
- The message digest algorithm to construct remote SMTP
- client-certificate fingerprints or public key fingerprints
- (Postfix 2.9 and later) for <b><a href="postconf.5.html#check_ccert_access">check_ccert_access</a></b> and <b>per-</b>
+ The message digest algorithm to construct remote SMTP
+ client-certificate fingerprints or public key fingerprints
+ (Postfix 2.9 and later) for <b><a href="postconf.5.html#check_ccert_access">check_ccert_access</a></b> and <b>per-</b>
<b>mit_tls_clientcerts</b>.
Available in Postfix version 2.6 and later:
<b><a href="postconf.5.html#smtpd_tls_protocols">smtpd_tls_protocols</a> (!SSLv2, !SSLv3)</b>
- List of TLS protocols that the Postfix SMTP server will exclude
+ List of TLS protocols that the Postfix SMTP server will exclude
or include with opportunistic TLS encryption.
<b><a href="postconf.5.html#smtpd_tls_ciphers">smtpd_tls_ciphers</a> (medium)</b>
- The minimum TLS cipher grade that the Postfix SMTP server will
+ The minimum TLS cipher grade that the Postfix SMTP server will
use with opportunistic TLS encryption.
<b><a href="postconf.5.html#smtpd_tls_eccert_file">smtpd_tls_eccert_file</a> (empty)</b>
- File with the Postfix SMTP server ECDSA certificate in PEM for-
+ File with the Postfix SMTP server ECDSA certificate in PEM for-
mat.
<b><a href="postconf.5.html#smtpd_tls_eckey_file">smtpd_tls_eckey_file</a> ($<a href="postconf.5.html#smtpd_tls_eccert_file">smtpd_tls_eccert_file</a>)</b>
- File with the Postfix SMTP server ECDSA private key in PEM for-
+ File with the Postfix SMTP server ECDSA private key in PEM for-
mat.
<b><a href="postconf.5.html#smtpd_tls_eecdh_grade">smtpd_tls_eecdh_grade</a> (see 'postconf -d' output)</b>
- The Postfix SMTP server security grade for ephemeral ellip-
+ The Postfix SMTP server security grade for ephemeral ellip-
tic-curve Diffie-Hellman (EECDH) key exchange.
<b><a href="postconf.5.html#tls_eecdh_strong_curve">tls_eecdh_strong_curve</a> (prime256v1)</b>
- The elliptic curve used by the Postfix SMTP server for sensibly
+ The elliptic curve used by the Postfix SMTP server for sensibly
strong ephemeral ECDH key exchange.
<b><a href="postconf.5.html#tls_eecdh_ultra_curve">tls_eecdh_ultra_curve</a> (secp384r1)</b>
<b><a href="postconf.5.html#tls_preempt_cipherlist">tls_preempt_cipherlist</a> (no)</b>
With SSLv3 and later, use the Postfix SMTP server's cipher pref-
- erence order instead of the remote client's cipher preference
+ erence order instead of the remote client's cipher preference
order.
<b><a href="postconf.5.html#tls_disable_workarounds">tls_disable_workarounds</a> (see 'postconf -d' output)</b>
Available in Postfix version 3.0 and later:
- <b><a href="postconf.5.html#tls_session_ticket_cipher">tls_session_ticket_cipher</a> (Postfix</b> ><b>= 3.0: aes-256-cbc, Postfix</b> < <b>3.0:</b>
+ <b><a href="postconf.5.html#tls_session_ticket_cipher">tls_session_ticket_cipher</a> (Postfix</b> ><b>= 3.0: aes-256-cbc, Postfix</b> < <b>3.0:</b>
<b>aes-128-cbc)</b>
Algorithm used to encrypt <a href="http://tools.ietf.org/html/rfc5077">RFC5077</a> TLS session tickets.
<b>OBSOLETE STARTTLS CONTROLS</b>
- The following configuration parameters exist for compatibility with
- Postfix versions before 2.3. Support for these will be removed in a
+ The following configuration parameters exist for compatibility with
+ Postfix versions before 2.3. Support for these will be removed in a
future release.
<b><a href="postconf.5.html#smtpd_use_tls">smtpd_use_tls</a> (no)</b>
- Opportunistic TLS: announce STARTTLS support to remote SMTP
+ Opportunistic TLS: announce STARTTLS support to remote SMTP
clients, but do not require that clients use TLS encryption.
<b><a href="postconf.5.html#smtpd_enforce_tls">smtpd_enforce_tls</a> (no)</b>
and require that clients use TLS encryption.
<b><a href="postconf.5.html#smtpd_tls_cipherlist">smtpd_tls_cipherlist</a> (empty)</b>
- Obsolete Postfix < 2.3 control for the Postfix SMTP server TLS
+ Obsolete Postfix < 2.3 control for the Postfix SMTP server TLS
cipher list.
<b>SMTPUTF8 CONTROLS</b>
Preliminary SMTPUTF8 support is introduced with Postfix 3.0.
<b><a href="postconf.5.html#smtputf8_enable">smtputf8_enable</a> (yes)</b>
- Enable preliminary SMTPUTF8 support for the protocols described
+ Enable preliminary SMTPUTF8 support for the protocols described
in <a href="http://tools.ietf.org/html/rfc6531">RFC 6531</a>..6533.
<b><a href="postconf.5.html#strict_smtputf8">strict_smtputf8</a> (no)</b>
Enable stricter enforcement of the SMTPUTF8 protocol.
<b><a href="postconf.5.html#smtputf8_autodetect_classes">smtputf8_autodetect_classes</a> (sendmail, verify)</b>
- Detect that a message requires SMTPUTF8 support for the speci-
+ Detect that a message requires SMTPUTF8 support for the speci-
fied mail origin classes.
<b>VERP SUPPORT CONTROLS</b>
- With VERP style delivery, each recipient of a message receives a cus-
- tomized copy of the message with his/her own recipient address encoded
+ With VERP style delivery, each recipient of a message receives a cus-
+ tomized copy of the message with his/her own recipient address encoded
in the envelope sender address. The <a href="VERP_README.html">VERP_README</a> file describes config-
- uration and operation details of Postfix support for variable envelope
- return path addresses. VERP style delivery is requested with the SMTP
- XVERP command or with the "sendmail -V" command-line option and is
+ uration and operation details of Postfix support for variable envelope
+ return path addresses. VERP style delivery is requested with the SMTP
+ XVERP command or with the "sendmail -V" command-line option and is
available in Postfix version 1.1 and later.
<b><a href="postconf.5.html#default_verp_delimiters">default_verp_delimiters</a> (+=)</b>
The two default VERP delimiter characters.
<b><a href="postconf.5.html#verp_delimiter_filter">verp_delimiter_filter</a> (-=+)</b>
- The characters Postfix accepts as VERP delimiter characters on
+ The characters Postfix accepts as VERP delimiter characters on
the Postfix <a href="sendmail.1.html"><b>sendmail</b>(1)</a> command line and in SMTP commands.
Available in Postfix version 1.1 and 2.0:
<b><a href="postconf.5.html#authorized_verp_clients">authorized_verp_clients</a> ($<a href="postconf.5.html#mynetworks">mynetworks</a>)</b>
- What remote SMTP clients are allowed to specify the XVERP com-
+ What remote SMTP clients are allowed to specify the XVERP com-
mand.
Available in Postfix version 2.1 and later:
<b><a href="postconf.5.html#smtpd_authorized_verp_clients">smtpd_authorized_verp_clients</a> ($<a href="postconf.5.html#authorized_verp_clients">authorized_verp_clients</a>)</b>
- What remote SMTP clients are allowed to specify the XVERP com-
+ What remote SMTP clients are allowed to specify the XVERP com-
mand.
<b>TROUBLE SHOOTING CONTROLS</b>
- The <a href="DEBUG_README.html">DEBUG_README</a> document describes how to debug parts of the Postfix
- mail system. The methods vary from making the software log a lot of
+ The <a href="DEBUG_README.html">DEBUG_README</a> document describes how to debug parts of the Postfix
+ mail system. The methods vary from making the software log a lot of
detail, to running some daemon processes under control of a call tracer
or debugger.
<b><a href="postconf.5.html#debug_peer_level">debug_peer_level</a> (2)</b>
- The increment in verbose logging level when a remote client or
+ The increment in verbose logging level when a remote client or
server matches a pattern in the <a href="postconf.5.html#debug_peer_list">debug_peer_list</a> parameter.
<b><a href="postconf.5.html#debug_peer_list">debug_peer_list</a> (empty)</b>
- Optional list of remote client or server hostname or network
+ Optional list of remote client or server hostname or network
address patterns that cause the verbose logging level to
increase by the amount specified in $<a href="postconf.5.html#debug_peer_level">debug_peer_level</a>.
<b><a href="postconf.5.html#error_notice_recipient">error_notice_recipient</a> (postmaster)</b>
- The recipient of postmaster notifications about mail delivery
+ The recipient of postmaster notifications about mail delivery
problems that are caused by policy, resource, software or proto-
col errors.
<b><a href="postconf.5.html#internal_mail_filter_classes">internal_mail_filter_classes</a> (empty)</b>
- What categories of Postfix-generated mail are subject to
- before-queue
content inspection by <a href="postconf.5.html#non_smtpd_milters">non_smtpd_milters</a>,
+ What categories of Postfix-generated mail are subject to
+ before-queue
content inspection by <a href="postconf.5.html#non_smtpd_milters">non_smtpd_milters</a>,
<a href="postconf.5.html#header_checks">header_checks</a> and <a href="postconf.5.html#body_checks">body_checks</a>.
<b><a href="postconf.5.html#notify_classes">notify_classes</a> (resource, software)</b>
The list of error classes that are reported to the postmaster.
<b><a href="postconf.5.html#smtpd_reject_footer">smtpd_reject_footer</a> (empty)</b>
- Optional information that is appended after each Postfix SMTP
+ Optional information that is appended after each Postfix SMTP
server 4XX or 5XX response.
<b><a href="postconf.5.html#soft_bounce">soft_bounce</a> (no)</b>
- Safety net to keep mail queued that would otherwise be returned
+ Safety net to keep mail queued that would otherwise be returned
to the sender.
Available in Postfix version 2.1 and later:
Available in Postfix version 2.10 and later:
<b><a href="postconf.5.html#smtpd_log_access_permit_actions">smtpd_log_access_permit_actions</a> (empty)</b>
- Enable logging of the named "permit" actions in SMTP server
- access lists (by default, the SMTP server logs "reject" actions
+ Enable logging of the named "permit" actions in SMTP server
+ access lists (by default, the SMTP server logs "reject" actions
but not "permit" actions).
<b>KNOWN VERSUS UNKNOWN RECIPIENT CONTROLS</b>
- As of Postfix version 2.0, the SMTP server rejects mail for unknown
+ As of Postfix version 2.0, the SMTP server rejects mail for unknown
recipients. This prevents the mail queue from clogging up with undeliv-
- erable MAILER-DAEMON messages. Additional information on this topic is
+ erable MAILER-DAEMON messages. Additional information on this topic is
in the <a href="LOCAL_RECIPIENT_README.html">LOCAL_RECIPIENT_README</a> and <a href="ADDRESS_CLASS_README.html">ADDRESS_CLASS_README</a> documents.
<b><a href="postconf.5.html#show_user_unknown_table_name">show_user_unknown_table_name</a> (yes)</b>
- Display the name of the recipient table in the "User unknown"
+ Display the name of the recipient table in the "User unknown"
responses.
<b><a href="postconf.5.html#canonical_maps">canonical_maps</a> (empty)</b>
- Optional address mapping lookup tables for message headers and
+ Optional address mapping lookup tables for message headers and
envelopes.
<b><a href="postconf.5.html#recipient_canonical_maps">recipient_canonical_maps</a> (empty)</b>
- Optional address mapping lookup tables for envelope and header
+ Optional address mapping lookup tables for envelope and header
recipient addresses.
Parameters concerning known/unknown local recipients:
<b><a href="postconf.5.html#mydestination">mydestination</a> ($<a href="postconf.5.html#myhostname">myhostname</a>, localhost.$<a href="postconf.5.html#mydomain">mydomain</a>, localhost)</b>
- The
list of domains that are delivered via the $<a href="postconf.5.html#local_transport">local_transport</a>
+ The
list of domains that are delivered via the $<a href="postconf.5.html#local_transport">local_transport</a>
mail delivery transport.
<b><a href="postconf.5.html#inet_interfaces">inet_interfaces</a> (all)</b>
- The network interface addresses that this mail system receives
+ The network interface addresses that this mail system receives
mail on.
<b><a href="postconf.5.html#proxy_interfaces">proxy_interfaces</a> (empty)</b>
- The network interface addresses that this mail system receives
+ The network interface addresses that this mail system receives
mail on by way of a proxy or network address translation unit.
<b><a href="postconf.5.html#inet_protocols">inet_protocols</a> (all)</b>
- The Internet protocols Postfix will attempt to use when making
+ The Internet protocols Postfix will attempt to use when making
or accepting connections.
<b><a href="postconf.5.html#local_recipient_maps">local_recipient_maps</a> (<a href="proxymap.8.html">proxy</a>:unix:passwd.byname $<a href="postconf.5.html#alias_maps">alias_maps</a>)</b>
Lookup tables with all names or addresses of local recipients: a
- recipient
address is local when its domain matches $<a href="postconf.5.html#mydestination">mydestina</a>-
+ recipient
address is local when its domain matches $<a href="postconf.5.html#mydestination">mydestina</a>-
<a href="postconf.5.html#mydestination">tion</a>, $<a href="postconf.5.html#inet_interfaces">inet_interfaces</a> or $<a href="postconf.5.html#proxy_interfaces">proxy_interfaces</a>.
<b><a href="postconf.5.html#unknown_local_recipient_reject_code">unknown_local_recipient_reject_code</a> (550)</b>
The numerical Postfix SMTP server response code when a recipient
- address is local, and $<a href="postconf.5.html#local_recipient_maps">local_recipient_maps</a> specifies a list of
+ address is local, and $<a href="postconf.5.html#local_recipient_maps">local_recipient_maps</a> specifies a list of
lookup tables that does not match the recipient.
Parameters concerning known/unknown recipients of relay destinations:
<b><a href="postconf.5.html#relay_domains">relay_domains</a> (Postfix</b> ><b>= 3.0: empty, Postfix</b> < <b>3.0: $<a href="postconf.5.html#mydestination">mydestination</a>)</b>
- What destination domains (and subdomains thereof) this system
+ What destination domains (and subdomains thereof) this system
will relay mail to.
<b><a href="postconf.5.html#relay_recipient_maps">relay_recipient_maps</a> (empty)</b>
- Optional lookup tables with all valid addresses in the domains
+ Optional lookup tables with all valid addresses in the domains
that match $<a href="postconf.5.html#relay_domains">relay_domains</a>.
<b><a href="postconf.5.html#unknown_relay_recipient_reject_code">unknown_relay_recipient_reject_code</a> (550)</b>
- The numerical Postfix SMTP server reply code when a recipient
- address matches $<a href="postconf.5.html#relay_domains">relay_domains</a>, and <a href="postconf.5.html#relay_recipient_maps">relay_recipient_maps</a> speci-
- fies a list of lookup tables that does not match the recipient
+ The numerical Postfix SMTP server reply code when a recipient
+ address matches $<a href="postconf.5.html#relay_domains">relay_domains</a>, and <a href="postconf.5.html#relay_recipient_maps">relay_recipient_maps</a> speci-
+ fies a list of lookup tables that does not match the recipient
address.
- Parameters concerning known/unknown recipients in virtual alias
+ Parameters concerning known/unknown recipients in virtual alias
domains:
<b><a href="postconf.5.html#virtual_alias_domains">virtual_alias_domains</a> ($<a href="postconf.5.html#virtual_alias_maps">virtual_alias_maps</a>)</b>
- Postfix is final destination for the specified list of virtual
- alias domains, that is, domains for which all addresses are
+ Postfix is final destination for the specified list of virtual
+ alias domains, that is, domains for which all addresses are
aliased to addresses in other local or remote domains.
<b><a href="postconf.5.html#virtual_alias_maps">virtual_alias_maps</a> ($<a href="postconf.5.html#virtual_maps">virtual_maps</a>)</b>
- Optional lookup tables that alias specific mail addresses or
+ Optional lookup tables that alias specific mail addresses or
domains to other local or remote address.
<b><a href="postconf.5.html#unknown_virtual_alias_reject_code">unknown_virtual_alias_reject_code</a> (550)</b>
- The Postfix SMTP server reply code when a recipient address
- matches $<a href="postconf.5.html#virtual_alias_domains">virtual_alias_domains</a>, and $<a href="postconf.5.html#virtual_alias_maps">virtual_alias_maps</a> speci-
- fies a list of lookup tables that does not match the recipient
+ The Postfix SMTP server reply code when a recipient address
+ matches $<a href="postconf.5.html#virtual_alias_domains">virtual_alias_domains</a>, and $<a href="postconf.5.html#virtual_alias_maps">virtual_alias_maps</a> speci-
+ fies a list of lookup tables that does not match the recipient
address.
Parameters concerning known/unknown recipients in virtual mailbox
domains:
<b><a href="postconf.5.html#virtual_mailbox_domains">virtual_mailbox_domains</a> ($<a href="postconf.5.html#virtual_mailbox_maps">virtual_mailbox_maps</a>)</b>
- Postfix is final destination for the specified list of domains;
- mail is delivered via the $<a href="postconf.5.html#virtual_transport">virtual_transport</a> mail delivery
+ Postfix is final destination for the specified list of domains;
+ mail is delivered via the $<a href="postconf.5.html#virtual_transport">virtual_transport</a> mail delivery
transport.
<b><a href="postconf.5.html#virtual_mailbox_maps">virtual_mailbox_maps</a> (empty)</b>
- Optional lookup tables with all valid addresses in the domains
+ Optional lookup tables with all valid addresses in the domains
that match $<a href="postconf.5.html#virtual_mailbox_domains">virtual_mailbox_domains</a>.
<b><a href="postconf.5.html#unknown_virtual_mailbox_reject_code">unknown_virtual_mailbox_reject_code</a> (550)</b>
- The Postfix SMTP server reply code when a recipient address
- matches
$<a href="postconf.5.html#virtual_mailbox_domains">virtual_mailbox_domains</a>, and $<a href="postconf.5.html#virtual_mailbox_maps">virtual_mailbox_maps</a>
+ The Postfix SMTP server reply code when a recipient address
+ matches
$<a href="postconf.5.html#virtual_mailbox_domains">virtual_mailbox_domains</a>, and $<a href="postconf.5.html#virtual_mailbox_maps">virtual_mailbox_maps</a>
specifies a list of lookup tables that does not match the recip-
ient address.
control client request rates.
<b><a href="postconf.5.html#line_length_limit">line_length_limit</a> (2048)</b>
- Upon input, long lines are chopped up into pieces of at most
+ Upon input, long lines are chopped up into pieces of at most
this length; upon delivery, long lines are reconstructed.
<b><a href="postconf.5.html#queue_minfree">queue_minfree</a> (0)</b>
tem that is needed to receive mail.
<b><a href="postconf.5.html#message_size_limit">message_size_limit</a> (10240000)</b>
- The maximal size in bytes of a message, including envelope
+ The maximal size in bytes of a message, including envelope
information.
<b><a href="postconf.5.html#smtpd_recipient_limit">smtpd_recipient_limit</a> (1000)</b>
- The maximal number of recipients that the Postfix SMTP server
+ The maximal number of recipients that the Postfix SMTP server
accepts per message delivery request.
<b><a href="postconf.5.html#smtpd_timeout">smtpd_timeout</a> (normal: 300s, overload: 10s)</b>
- The time limit for sending a Postfix SMTP server response and
+ The time limit for sending a Postfix SMTP server response and
for receiving a remote SMTP client request.
<b><a href="postconf.5.html#smtpd_history_flush_threshold">smtpd_history_flush_threshold</a> (100)</b>
- The maximal number of lines in the Postfix SMTP server command
- history before it is flushed upon receipt of EHLO, RSET, or end
+ The maximal number of lines in the Postfix SMTP server command
+ history before it is flushed upon receipt of EHLO, RSET, or end
of DATA.
Available in Postfix version 2.3 and later:
<b><a href="postconf.5.html#smtpd_peername_lookup">smtpd_peername_lookup</a> (yes)</b>
- Attempt to look up the remote SMTP client hostname, and verify
+ Attempt to look up the remote SMTP client hostname, and verify
that the name matches the client IP address.
The per SMTP client connection count and request rate limits are imple-
- mented in co-operation with the <a href="anvil.8.html"><b>anvil</b>(8)</a> service, and are available in
+ mented in co-operation with the <a href="anvil.8.html"><b>anvil</b>(8)</a> service, and are available in
Postfix version 2.2 and later.
<b><a href="postconf.5.html#smtpd_client_connection_count_limit">smtpd_client_connection_count_limit</a> (50)</b>
- How many simultaneous connections any client is allowed to make
+ How many simultaneous connections any client is allowed to make
to this service.
<b><a href="postconf.5.html#smtpd_client_connection_rate_limit">smtpd_client_connection_rate_limit</a> (0)</b>
- The maximal number of connection attempts any client is allowed
+ The maximal number of connection attempts any client is allowed
to make to this service per time unit.
<b><a href="postconf.5.html#smtpd_client_message_rate_limit">smtpd_client_message_rate_limit</a> (0)</b>
- The maximal number of message delivery requests that any client
- is allowed to make to this service per time unit, regardless of
+ The maximal number of message delivery requests that any client
+ is allowed to make to this service per time unit, regardless of
whether or not Postfix actually accepts those messages.
<b><a href="postconf.5.html#smtpd_client_recipient_rate_limit">smtpd_client_recipient_rate_limit</a> (0)</b>
- The maximal number of recipient addresses that any client is
- allowed to send to this service per time unit, regardless of
+ The maximal number of recipient addresses that any client is
+ allowed to send to this service per time unit, regardless of
whether or not Postfix actually accepts those recipients.
<b><a href="postconf.5.html#smtpd_client_event_limit_exceptions">smtpd_client_event_limit_exceptions</a> ($<a href="postconf.5.html#mynetworks">mynetworks</a>)</b>
- Clients that are excluded from smtpd_client_*_count/rate_limit
+ Clients that are excluded from smtpd_client_*_count/rate_limit
restrictions.
Available in Postfix version 2.3 and later:
<b><a href="postconf.5.html#smtpd_client_new_tls_session_rate_limit">smtpd_client_new_tls_session_rate_limit</a> (0)</b>
- The maximal number of new (i.e., uncached) TLS sessions that a
+ The maximal number of new (i.e., uncached) TLS sessions that a
remote SMTP client is allowed to negotiate with this service per
time unit.
<b><a href="postconf.5.html#smtpd_per_record_deadline">smtpd_per_record_deadline</a> (normal: no, overload: yes)</b>
Change the behavior of the <a href="postconf.5.html#smtpd_timeout">smtpd_timeout</a> and <a href="postconf.5.html#smtpd_starttls_timeout">smtpd_start</a>-
- <a href="postconf.5.html#smtpd_starttls_timeout">tls_timeout</a> time limits, from a time limit per read or write
- system call, to a time limit to send or receive a complete
- record (an SMTP command line, SMTP response line, SMTP message
+ <a href="postconf.5.html#smtpd_starttls_timeout">tls_timeout</a> time limits, from a time limit per read or write
+ system call, to a time limit to send or receive a complete
+ record (an SMTP command line, SMTP response line, SMTP message
content line, or TLS protocol message).
Available in Postfix version 3.1 and later:
<b><a href="postconf.5.html#smtpd_client_auth_rate_limit">smtpd_client_auth_rate_limit</a> (0)</b>
- The maximal number of AUTH commands that any client is allowed
- to send to this service per time unit, regardless of whether or
+ The maximal number of AUTH commands that any client is allowed
+ to send to this service per time unit, regardless of whether or
not Postfix actually accepts those commands.
<b>TARPIT CONTROLS</b>
- When a remote SMTP client makes errors, the Postfix SMTP server can
- insert delays before responding. This can help to slow down run-away
- software. The behavior is controlled by an error counter that counts
+ When a remote SMTP client makes errors, the Postfix SMTP server can
+ insert delays before responding. This can help to slow down run-away
+ software. The behavior is controlled by an error counter that counts
the number of errors within an SMTP session that a client makes without
delivering mail.
<b><a href="postconf.5.html#smtpd_error_sleep_time">smtpd_error_sleep_time</a> (1s)</b>
- With Postfix version 2.1 and later: the SMTP server response
- delay
after a client has made more than $<a href="postconf.5.html#smtpd_soft_error_limit">smtpd_soft_error_limit</a>
- errors, and fewer than $<a href="postconf.5.html#smtpd_hard_error_limit">smtpd_hard_error_limit</a> errors, without
+ With Postfix version 2.1 and later: the SMTP server response
+ delay
after a client has made more than $<a href="postconf.5.html#smtpd_soft_error_limit">smtpd_soft_error_limit</a>
+ errors, and fewer than $<a href="postconf.5.html#smtpd_hard_error_limit">smtpd_hard_error_limit</a> errors, without
delivering mail.
<b><a href="postconf.5.html#smtpd_soft_error_limit">smtpd_soft_error_limit</a> (10)</b>
- The number of errors a remote SMTP client is allowed to make
- without delivering mail before the Postfix SMTP server slows
+ The number of errors a remote SMTP client is allowed to make
+ without delivering mail before the Postfix SMTP server slows
down all its responses.
<b><a href="postconf.5.html#smtpd_hard_error_limit">smtpd_hard_error_limit</a> (normal: 20, overload: 1)</b>
- The maximal number of errors a remote SMTP client is allowed to
+ The maximal number of errors a remote SMTP client is allowed to
make without delivering mail.
<b><a href="postconf.5.html#smtpd_junk_command_limit">smtpd_junk_command_limit</a> (normal: 100, overload: 1)</b>
- The number of junk commands (NOOP, VRFY, ETRN or RSET) that a
- remote SMTP client can send before the Postfix SMTP server
+ The number of junk commands (NOOP, VRFY, ETRN or RSET) that a
+ remote SMTP client can send before the Postfix SMTP server
starts to increment the error counter with each junk command.
Available in Postfix version 2.1 and later:
<b><a href="postconf.5.html#smtpd_recipient_overshoot_limit">smtpd_recipient_overshoot_limit</a> (1000)</b>
- The number of recipients that a remote SMTP client can send in
+ The number of recipients that a remote SMTP client can send in
excess of the limit specified with $<a href="postconf.5.html#smtpd_recipient_limit">smtpd_recipient_limit</a>,
- before the Postfix SMTP server increments the per-session error
+ before the Postfix SMTP server increments the per-session error
count for each excess recipient.
<b>ACCESS POLICY DELEGATION CONTROLS</b>
- As of version 2.1, Postfix can be configured to delegate access policy
- decisions to an external server that runs outside Postfix. See the
+ As of version 2.1, Postfix can be configured to delegate access policy
+ decisions to an external server that runs outside Postfix. See the
file <a href="SMTPD_POLICY_README.html">SMTPD_POLICY_README</a> for more information.
<b><a href="postconf.5.html#smtpd_policy_service_max_idle">smtpd_policy_service_max_idle</a> (300s)</b>
- The time after which an idle SMTPD policy service connection is
+ The time after which an idle SMTPD policy service connection is
closed.
<b><a href="postconf.5.html#smtpd_policy_service_max_ttl">smtpd_policy_service_max_ttl</a> (1000s)</b>
- The time after which an active SMTPD policy service connection
+ The time after which an active SMTPD policy service connection
is closed.
<b><a href="postconf.5.html#smtpd_policy_service_timeout">smtpd_policy_service_timeout</a> (100s)</b>
- The time limit for connecting to, writing to, or receiving from
+ The time limit for connecting to, writing to, or receiving from
a delegated SMTPD policy server.
Available in Postfix version 3.0 and later:
The default action when an SMTPD policy service request fails.
<b><a href="postconf.5.html#smtpd_policy_service_request_limit">smtpd_policy_service_request_limit</a> (0)</b>
- The maximal number of requests per SMTPD policy service connec-
+ The maximal number of requests per SMTPD policy service connec-
tion, or zero (no limit).
<b><a href="postconf.5.html#smtpd_policy_service_try_limit">smtpd_policy_service_try_limit</a> (2)</b>
- The maximal number of attempts to send an SMTPD policy service
+ The maximal number of attempts to send an SMTPD policy service
request before giving up.
<b><a href="postconf.5.html#smtpd_policy_service_retry_delay">smtpd_policy_service_retry_delay</a> (1s)</b>
- The delay between attempts to resend a failed SMTPD policy ser-
+ The delay between attempts to resend a failed SMTPD policy ser-
vice request.
Available in Postfix version 3.1 and later:
<b><a href="postconf.5.html#smtpd_policy_service_policy_context">smtpd_policy_service_policy_context</a> (empty)</b>
- Optional information that the Postfix SMTP server specifies in
- the "policy_context" attribute of a policy service request
- (originally, to share the same service endpoint among multiple
+ Optional information that the Postfix SMTP server specifies in
+ the "policy_context" attribute of a policy service request
+ (originally, to share the same service endpoint among multiple
<a href="postconf.5.html#check_policy_service">check_policy_service</a> clients).
<b>ACCESS CONTROLS</b>
- The <a href="SMTPD_ACCESS_README.html">SMTPD_ACCESS_README</a> document gives an introduction to all the SMTP
+ The <a href="SMTPD_ACCESS_README.html">SMTPD_ACCESS_README</a> document gives an introduction to all the SMTP
server access control features.
<b><a href="postconf.5.html#smtpd_delay_reject">smtpd_delay_reject</a> (yes)</b>
- Wait until the RCPT TO command before evaluating
+ Wait until the RCPT TO command before evaluating
$<a href="postconf.5.html#smtpd_client_restrictions">smtpd_client_restrictions</a>, $<a href="postconf.5.html#smtpd_helo_restrictions">smtpd_helo_restrictions</a> and
$<a href="postconf.5.html#smtpd_sender_restrictions">smtpd_sender_restrictions</a>, or wait until the ETRN command
- before evaluating $<a href="postconf.5.html#smtpd_client_restrictions">smtpd_client_restrictions</a> and
+ before evaluating $<a href="postconf.5.html#smtpd_client_restrictions">smtpd_client_restrictions</a> and
$<a href="postconf.5.html#smtpd_helo_restrictions">smtpd_helo_restrictions</a>.
<b><a href="postconf.5.html#parent_domain_matches_subdomains">parent_domain_matches_subdomains</a> (see 'postconf -d' output)</b>
- A list of Postfix features where the pattern "example.com" also
- matches subdomains of example.com, instead of requiring an
+ A list of Postfix features where the pattern "example.com" also
+ matches subdomains of example.com, instead of requiring an
explicit ".example.com" pattern.
<b><a href="postconf.5.html#smtpd_client_restrictions">smtpd_client_restrictions</a> (empty)</b>
- Optional restrictions that the Postfix SMTP server applies in
+ Optional restrictions that the Postfix SMTP server applies in
the context of a client connection request.
<b><a href="postconf.5.html#smtpd_helo_required">smtpd_helo_required</a> (no)</b>
- Require that a remote SMTP client introduces itself with the
- HELO or EHLO command before sending the MAIL command or other
+ Require that a remote SMTP client introduces itself with the
+ HELO or EHLO command before sending the MAIL command or other
commands that require EHLO negotiation.
<b><a href="postconf.5.html#smtpd_helo_restrictions">smtpd_helo_restrictions</a> (empty)</b>
- Optional restrictions that the Postfix SMTP server applies in
+ Optional restrictions that the Postfix SMTP server applies in
the context of a client HELO command.
<b><a href="postconf.5.html#smtpd_sender_restrictions">smtpd_sender_restrictions</a> (empty)</b>
- Optional restrictions that the Postfix SMTP server applies in
+ Optional restrictions that the Postfix SMTP server applies in
the context of a client MAIL FROM command.
<b><a href="postconf.5.html#smtpd_recipient_restrictions">smtpd_recipient_restrictions</a> (see 'postconf -d' output)</b>
- Optional restrictions that the Postfix SMTP server applies in
- the context of a client RCPT TO command, after
+ Optional restrictions that the Postfix SMTP server applies in
+ the context of a client RCPT TO command, after
<a href="postconf.5.html#smtpd_relay_restrictions">smtpd_relay_restrictions</a>.
<b><a href="postconf.5.html#smtpd_etrn_restrictions">smtpd_etrn_restrictions</a> (empty)</b>
- Optional restrictions that the Postfix SMTP server applies in
+ Optional restrictions that the Postfix SMTP server applies in
the context of a client ETRN command.
<b><a href="postconf.5.html#allow_untrusted_routing">allow_untrusted_routing</a> (no)</b>
- Forward mail with sender-specified routing
- (user[@%!]remote[@%!]site) from untrusted clients to destina-
+ Forward mail with sender-specified routing
+ (user[@%!]remote[@%!]site) from untrusted clients to destina-
tions matching $<a href="postconf.5.html#relay_domains">relay_domains</a>.
<b><a href="postconf.5.html#smtpd_restriction_classes">smtpd_restriction_classes</a> (empty)</b>
User-defined aliases for groups of access restrictions.
<b><a href="postconf.5.html#smtpd_null_access_lookup_key">smtpd_null_access_lookup_key</a> (</b><><b>)</b>
- The lookup key to be used in SMTP <a href="access.5.html"><b>access</b>(5)</a> tables instead of
+ The lookup key to be used in SMTP <a href="access.5.html"><b>access</b>(5)</a> tables instead of
the null sender address.
<b><a href="postconf.5.html#permit_mx_backup_networks">permit_mx_backup_networks</a> (empty)</b>
- Restrict the use of the <a href="postconf.5.html#permit_mx_backup">permit_mx_backup</a> SMTP access feature to
+ Restrict the use of the <a href="postconf.5.html#permit_mx_backup">permit_mx_backup</a> SMTP access feature to
only domains whose primary MX hosts match the listed networks.
Available in Postfix version 2.0 and later:
applies in the context of the SMTP DATA command.
<b><a href="postconf.5.html#smtpd_expansion_filter">smtpd_expansion_filter</a> (see 'postconf -d' output)</b>
- What characters are allowed in $name expansions of RBL reply
+ What characters are allowed in $name expansions of RBL reply
templates.
Available in Postfix version 2.1 and later:
<b><a href="postconf.5.html#smtpd_reject_unlisted_sender">smtpd_reject_unlisted_sender</a> (no)</b>
- Request that the Postfix SMTP server rejects mail from unknown
- sender
addresses, even when no explicit <a href="postconf.5.html#reject_unlisted_sender">reject_unlisted_sender</a>
+ Request that the Postfix SMTP server rejects mail from unknown
+ sender
addresses, even when no explicit <a href="postconf.5.html#reject_unlisted_sender">reject_unlisted_sender</a>
access restriction is specified.
<b><a href="postconf.5.html#smtpd_reject_unlisted_recipient">smtpd_reject_unlisted_recipient</a> (yes)</b>
- Request that the Postfix SMTP server rejects mail for unknown
- recipient addresses, even when no explicit
+ Request that the Postfix SMTP server rejects mail for unknown
+ recipient addresses, even when no explicit
<a href="postconf.5.html#reject_unlisted_recipient">reject_unlisted_recipient</a> access restriction is specified.
Available in Postfix version 2.2 and later:
<b><a href="postconf.5.html#smtpd_relay_restrictions">smtpd_relay_restrictions</a> (<a href="postconf.5.html#permit_mynetworks">permit_mynetworks</a>, <a href="postconf.5.html#permit_sasl_authenticated">permit_sasl_authenticated</a>,</b>
<b><a href="postconf.5.html#defer_unauth_destination">defer_unauth_destination</a>)</b>
Access restrictions for mail relay control that the Postfix SMTP
- server applies in the context of the RCPT TO command, before
+ server applies in the context of the RCPT TO command, before
<a href="postconf.5.html#smtpd_recipient_restrictions">smtpd_recipient_restrictions</a>.
<b>SENDER AND RECIPIENT ADDRESS VERIFICATION CONTROLS</b>
- Postfix version 2.1 introduces sender and recipient address verifica-
+ Postfix version 2.1 introduces sender and recipient address verifica-
tion. This feature is implemented by sending probe email messages that
are not actually delivered. This feature is requested via the
- <a href="postconf.5.html#reject_unverified_sender">reject_unverified_sender</a> and <a href="postconf.5.html#reject_unverified_recipient">reject_unverified_recipient</a> access
- restrictions. The status of verification probes is maintained by the
- <a href="verify.8.html"><b>verify</b>(8)</a> server. See the file <a href="ADDRESS_VERIFICATION_README.html">ADDRESS_VERIFICATION_README</a> for infor-
- mation about how to configure and operate the Postfix sender/recipient
+ <a href="postconf.5.html#reject_unverified_sender">reject_unverified_sender</a> and <a href="postconf.5.html#reject_unverified_recipient">reject_unverified_recipient</a> access
+ restrictions. The status of verification probes is maintained by the
+ <a href="verify.8.html"><b>verify</b>(8)</a> server. See the file <a href="ADDRESS_VERIFICATION_README.html">ADDRESS_VERIFICATION_README</a> for infor-
+ mation about how to configure and operate the Postfix sender/recipient
address verification service.
<b><a href="postconf.5.html#address_verify_poll_count">address_verify_poll_count</a> (normal: 3, overload: 1)</b>
fication request in progress.
<b><a href="postconf.5.html#address_verify_sender">address_verify_sender</a> ($<a href="postconf.5.html#double_bounce_sender">double_bounce_sender</a>)</b>
- The sender address to use in address verification probes; prior
+ The sender address to use in address verification probes; prior
to Postfix 2.5 the default was "postmaster".
<b><a href="postconf.5.html#unverified_sender_reject_code">unverified_sender_reject_code</a> (450)</b>
address is rejected by the <a href="postconf.5.html#reject_unverified_sender">reject_unverified_sender</a> restriction.
<b><a href="postconf.5.html#unverified_recipient_reject_code">unverified_recipient_reject_code</a> (450)</b>
- The numerical Postfix SMTP server response when a recipient
- address is rejected by the <a href="postconf.5.html#reject_unverified_recipient">reject_unverified_recipient</a> restric-
+ The numerical Postfix SMTP server response when a recipient
+ address is rejected by the <a href="postconf.5.html#reject_unverified_recipient">reject_unverified_recipient</a> restric-
tion.
Available in Postfix version 2.6 and later:
<b><a href="postconf.5.html#unverified_sender_defer_code">unverified_sender_defer_code</a> (450)</b>
- The numerical Postfix SMTP server response code when a sender
+ The numerical Postfix SMTP server response code when a sender
address probe fails due to a temporary error condition.
<b><a href="postconf.5.html#unverified_recipient_defer_code">unverified_recipient_defer_code</a> (450)</b>
- The numerical Postfix SMTP server response when a recipient
+ The numerical Postfix SMTP server response when a recipient
address probe fails due to a temporary error condition.
<b><a href="postconf.5.html#unverified_sender_reject_reason">unverified_sender_reject_reason</a> (empty)</b>
<a href="postconf.5.html#reject_unverified_recipient">reject_unverified_recipient</a>.
<b><a href="postconf.5.html#unverified_sender_tempfail_action">unverified_sender_tempfail_action</a> ($<a href="postconf.5.html#reject_tempfail_action">reject_tempfail_action</a>)</b>
- The
Postfix SMTP server's action when <a href="postconf.5.html#reject_unverified_sender">reject_unverified_sender</a>
+ The
Postfix SMTP server's action when <a href="postconf.5.html#reject_unverified_sender">reject_unverified_sender</a>
fails due to a temporary error condition.
<b><a href="postconf.5.html#unverified_recipient_tempfail_action">unverified_recipient_tempfail_action</a> ($<a href="postconf.5.html#reject_tempfail_action">reject_tempfail_action</a>)</b>
- The
Postfix SMTP server's action when <a href="postconf.5.html#reject_unverified_recipient">reject_unverified_recipi</a>-
+ The
Postfix SMTP server's action when <a href="postconf.5.html#reject_unverified_recipient">reject_unverified_recipi</a>-
<a href="postconf.5.html#reject_unverified_recipient">ent</a> fails due to a temporary error condition.
Available with Postfix 2.9 and later:
<b><a href="postconf.5.html#address_verify_sender_ttl">address_verify_sender_ttl</a> (0s)</b>
- The time between changes in the time-dependent portion of
+ The time between changes in the time-dependent portion of
address verification probe sender addresses.
<b>ACCESS CONTROL RESPONSES</b>
map "reject" action.
<b><a href="postconf.5.html#defer_code">defer_code</a> (450)</b>
- The numerical Postfix SMTP server response code when a remote
+ The numerical Postfix SMTP server response code when a remote
SMTP client request is rejected by the "defer" restriction.
<b><a href="postconf.5.html#invalid_hostname_reject_code">invalid_hostname_reject_code</a> (501)</b>
- The numerical Postfix SMTP server response code when the client
- HELO or EHLO command parameter is rejected by the
+ The numerical Postfix SMTP server response code when the client
+ HELO or EHLO command parameter is rejected by the
<a href="postconf.5.html#reject_invalid_helo_hostname">reject_invalid_helo_hostname</a> restriction.
<b><a href="postconf.5.html#maps_rbl_reject_code">maps_rbl_reject_code</a> (554)</b>
- The numerical Postfix SMTP server response code when a remote
- SMTP
client request is blocked by the <a href="postconf.5.html#reject_rbl_client">reject_rbl_client</a>,
+ The numerical Postfix SMTP server response code when a remote
+ SMTP
client request is blocked by the <a href="postconf.5.html#reject_rbl_client">reject_rbl_client</a>,
<a href="postconf.5.html#reject_rhsbl_client">reject_rhsbl_client</a>, <a href="postconf.5.html#reject_rhsbl_reverse_client">reject_rhsbl_reverse_client</a>,
<a href="postconf.5.html#reject_rhsbl_sender">reject_rhsbl_sender</a> or <a href="postconf.5.html#reject_rhsbl_recipient">reject_rhsbl_recipient</a> restriction.
<b><a href="postconf.5.html#non_fqdn_reject_code">non_fqdn_reject_code</a> (504)</b>
- The numerical Postfix SMTP server reply code when a client
- request
is rejected by the <a href="postconf.5.html#reject_non_fqdn_helo_hostname">reject_non_fqdn_helo_hostname</a>,
+ The numerical Postfix SMTP server reply code when a client
+ request
is rejected by the <a href="postconf.5.html#reject_non_fqdn_helo_hostname">reject_non_fqdn_helo_hostname</a>,
<a href="postconf.5.html#reject_non_fqdn_sender">reject_non_fqdn_sender</a> or <a href="postconf.5.html#reject_non_fqdn_recipient">reject_non_fqdn_recipient</a> restriction.
<b><a href="postconf.5.html#plaintext_reject_code">plaintext_reject_code</a> (450)</b>
- The numerical Postfix SMTP server response code when a request
+ The numerical Postfix SMTP server response code when a request
is rejected by the <b><a href="postconf.5.html#reject_plaintext_session">reject_plaintext_session</a></b> restriction.
<b><a href="postconf.5.html#reject_code">reject_code</a> (554)</b>
- The numerical Postfix SMTP server response code when a remote
+ The numerical Postfix SMTP server response code when a remote
SMTP client request is rejected by the "reject" restriction.
<b><a href="postconf.5.html#relay_domains_reject_code">relay_domains_reject_code</a> (554)</b>
- The numerical Postfix SMTP server response code when a client
- request is rejected by the <a href="postconf.5.html#reject_unauth_destination">reject_unauth_destination</a> recipient
+ The numerical Postfix SMTP server response code when a client
+ request is rejected by the <a href="postconf.5.html#reject_unauth_destination">reject_unauth_destination</a> recipient
restriction.
<b><a href="postconf.5.html#unknown_address_reject_code">unknown_address_reject_code</a> (450)</b>
a sender or recipient address because its domain is unknown.
<b><a href="postconf.5.html#unknown_client_reject_code">unknown_client_reject_code</a> (450)</b>
- The numerical Postfix SMTP server response code when a client
- without valid address <=> name mapping is rejected by the
+ The numerical Postfix SMTP server response code when a client
+ without valid address <=> name mapping is rejected by the
<a href="postconf.5.html#reject_unknown_client_hostname">reject_unknown_client_hostname</a> restriction.
<b><a href="postconf.5.html#unknown_hostname_reject_code">unknown_hostname_reject_code</a> (450)</b>
- The numerical Postfix SMTP server response code when the host-
- name specified with the HELO or EHLO command is rejected by the
+ The numerical Postfix SMTP server response code when the host-
+ name specified with the HELO or EHLO command is rejected by the
<a href="postconf.5.html#reject_unknown_helo_hostname">reject_unknown_helo_hostname</a> restriction.
Available in Postfix version 2.0 and later:
<b><a href="postconf.5.html#default_rbl_reply">default_rbl_reply</a> (see 'postconf -d' output)</b>
- The default Postfix SMTP server response template for a request
+ The default Postfix SMTP server response template for a request
that is rejected by an RBL-based restriction.
<b><a href="postconf.5.html#multi_recipient_bounce_reject_code">multi_recipient_bounce_reject_code</a> (550)</b>
- The numerical Postfix SMTP server response code when a remote
- SMTP
client request is blocked by the <a href="postconf.5.html#reject_multi_recipient_bounce">reject_multi_recipi</a>-
+ The numerical Postfix SMTP server response code when a remote
+ SMTP
client request is blocked by the <a href="postconf.5.html#reject_multi_recipient_bounce">reject_multi_recipi</a>-
<a href="postconf.5.html#reject_multi_recipient_bounce">ent_bounce</a> restriction.
<b><a href="postconf.5.html#rbl_reply_maps">rbl_reply_maps</a> (empty)</b>
<b><a href="postconf.5.html#access_map_defer_code">access_map_defer_code</a> (450)</b>
The numerical Postfix SMTP server response code for an <a href="access.5.html"><b>access</b>(5)</a>
- map "defer" action, including "<a href="postconf.5.html#defer_if_permit">defer_if_permit</a>" or
+ map "defer" action, including "<a href="postconf.5.html#defer_if_permit">defer_if_permit</a>" or
"<a href="postconf.5.html#defer_if_reject">defer_if_reject</a>".
<b><a href="postconf.5.html#reject_tempfail_action">reject_tempfail_action</a> (<a href="postconf.5.html#defer_if_permit">defer_if_permit</a>)</b>
- The Postfix SMTP server's action when a reject-type restriction
+ The Postfix SMTP server's action when a reject-type restriction
fails due to a temporary error condition.
<b><a href="postconf.5.html#unknown_helo_hostname_tempfail_action">unknown_helo_hostname_tempfail_action</a> ($<a href="postconf.5.html#reject_tempfail_action">reject_tempfail_action</a>)</b>
- The
Postfix SMTP server's action when <a href="postconf.5.html#reject_unknown_helo_hostname">reject_unknown_helo_host</a>-
+ The
Postfix SMTP server's action when <a href="postconf.5.html#reject_unknown_helo_hostname">reject_unknown_helo_host</a>-
<a href="postconf.5.html#reject_unknown_helo_hostname">name</a> fails due to an temporary error condition.
<b><a href="postconf.5.html#unknown_address_tempfail_action">unknown_address_tempfail_action</a> ($<a href="postconf.5.html#reject_tempfail_action">reject_tempfail_action</a>)</b>
- The Postfix SMTP server's action when
- <a href="postconf.5.html#reject_unknown_sender_domain">reject_unknown_sender_domain</a>
or <a href="postconf.5.html#reject_unknown_recipient_domain">reject_unknown_recipient_domain</a>
+ The Postfix SMTP server's action when
+ <a href="postconf.5.html#reject_unknown_sender_domain">reject_unknown_sender_domain</a>
or <a href="postconf.5.html#reject_unknown_recipient_domain">reject_unknown_recipient_domain</a>
fail due to a temporary error condition.
<b>MISCELLANEOUS CONTROLS</b>
<b><a href="postconf.5.html#config_directory">config_directory</a> (see 'postconf -d' output)</b>
- The default location of the Postfix <a href="postconf.5.html">main.cf</a> and <a href="master.5.html">master.cf</a> con-
+ The default location of the Postfix <a href="postconf.5.html">main.cf</a> and <a href="master.5.html">master.cf</a> con-
figuration files.
<b><a href="postconf.5.html#daemon_timeout">daemon_timeout</a> (18000s)</b>
- How much time a Postfix daemon process may take to handle a
+ How much time a Postfix daemon process may take to handle a
request before it is terminated by a built-in watchdog timer.
<b><a href="postconf.5.html#command_directory">command_directory</a> (see 'postconf -d' output)</b>
The location of all postfix administrative commands.
<b><a href="postconf.5.html#double_bounce_sender">double_bounce_sender</a> (double-bounce)</b>
- The sender address of postmaster notifications that are gener-
+ The sender address of postmaster notifications that are gener-
ated by the mail system.
<b><a href="postconf.5.html#ipc_timeout">ipc_timeout</a> (3600s)</b>
- The time limit for sending or receiving information over an
+ The time limit for sending or receiving information over an
internal communication channel.
<b><a href="postconf.5.html#mail_name">mail_name</a> (Postfix)</b>
- The mail system name that is displayed in Received: headers, in
+ The mail system name that is displayed in Received: headers, in
the SMTP greeting banner, and in bounced mail.
<b><a href="postconf.5.html#mail_owner">mail_owner</a> (postfix)</b>
- The UNIX system account that owns the Postfix queue and most
+ The UNIX system account that owns the Postfix queue and most
Postfix daemon processes.
<b><a href="postconf.5.html#max_idle">max_idle</a> (100s)</b>
- The maximum amount of time that an idle Postfix daemon process
+ The maximum amount of time that an idle Postfix daemon process
waits for an incoming connection before terminating voluntarily.
<b><a href="postconf.5.html#max_use">max_use</a> (100)</b>
The internet hostname of this mail system.
<b><a href="postconf.5.html#mynetworks">mynetworks</a> (see 'postconf -d' output)</b>
- The list of "trusted" remote SMTP clients that have more privi-
+ The list of "trusted" remote SMTP clients that have more privi-
leges than "strangers".
<b><a href="postconf.5.html#myorigin">myorigin</a> ($<a href="postconf.5.html#myhostname">myhostname</a>)</b>
- The domain name that locally-posted mail appears to come from,
+ The domain name that locally-posted mail appears to come from,
and that locally posted mail is delivered to.
<b><a href="postconf.5.html#process_id">process_id</a> (read-only)</b>
The location of the Postfix top-level queue directory.
<b><a href="postconf.5.html#recipient_delimiter">recipient_delimiter</a> (empty)</b>
- The set of characters that can separate a user name from its
- extension (example: user+foo), or a .forward file name from its
+ The set of characters that can separate a user name from its
+ extension (example: user+foo), or a .forward file name from its
extension (example: .forward+foo).
<b><a href="postconf.5.html#smtpd_banner">smtpd_banner</a> ($<a href="postconf.5.html#myhostname">myhostname</a> ESMTP $<a href="postconf.5.html#mail_name">mail_name</a>)</b>
- The text that follows the 220 status code in the SMTP greeting
+ The text that follows the 220 status code in the SMTP greeting
banner.
<b><a href="postconf.5.html#syslog_facility">syslog_facility</a> (mail)</b>
The syslog facility of Postfix logging.
<b><a href="postconf.5.html#syslog_name">syslog_name</a> (see 'postconf -d' output)</b>
- A prefix that is prepended to the process name in syslog
+ A prefix that is prepended to the process name in syslog
records, so that, for example, "smtpd" becomes "prefix/smtpd".
Available in Postfix version 2.2 and later:
<b><a href="postconf.5.html#smtpd_forbidden_commands">smtpd_forbidden_commands</a> (CONNECT, GET, POST)</b>
- List of commands that cause the Postfix SMTP server to immedi-
+ List of commands that cause the Postfix SMTP server to immedi-
ately terminate the session with a 221 code.
Available in Postfix version 2.5 and later:
/* Optional list of \fIname=value\fR pairs that specify default
/* values for arbitrary macros that Postfix may send to Milter
/* applications.
+/* .PP
+/* Available in Postfix version 3.2 and later:
+/* .IP "\fBsmtpd_milter_maps (empty)\fR"
+/* Lookup tables with Milter settings per remote SMTP client IP
+/* address.
/* GENERAL CONTENT INSPECTION CONTROLS
/* .ad
/* .fi
int var_plaintext_code;
bool var_smtpd_delay_open;
char *var_smtpd_milters;
+char *var_smtpd_milter_maps;
int var_milt_conn_time;
int var_milt_cmd_time;
int var_milt_msg_time;
*/
static MAPS *ehlo_discard_maps;
+ /*
+ * Per-client Milter support.
+ */
+static MAPS *smtpd_milter_maps;
+static void setup_milters(SMTPD_STATE *);
+static void teardown_milters(SMTPD_STATE *);
+
/*
* VERP command name.
*/
#define REASON_LOST_CONNECTION "lost connection"
#define REASON_ERROR_LIMIT "too many errors"
- /*
- * Mail filter initialization status.
- */
-MILTERS *smtpd_milters;
-
#ifdef USE_TLS
/*
#define PUSH_STRING(old, curr, new) { char *old = (curr); (curr) = (new);
#define POP_STRING(old, curr) (curr) = old; }
- if (smtpd_milters != 0
- && SMTPD_STAND_ALONE(state) == 0
+ if (state->milters != 0
&& (state->saved_flags & MILTER_SKIP_FLAGS) == 0
- && (err = milter_helo_event(smtpd_milters, argv[1].strval, 0)) != 0) {
+ && (err = milter_helo_event(state->milters, argv[1].strval, 0)) != 0) {
/* Log reject etc. with correct HELO information. */
PUSH_STRING(saved_helo, state->helo_name, argv[1].strval);
err = check_milter_reply(state, err);
* other commands such as AUTH, STARTTLS, and VRFY.
*/
err = 0;
- if (smtpd_milters != 0
- && SMTPD_STAND_ALONE(state) == 0
+ if (state->milters != 0
&& (state->saved_flags & MILTER_SKIP_FLAGS) == 0
- && (err = milter_helo_event(smtpd_milters, argv[1].strval, 1)) != 0) {
+ && (err = milter_helo_event(state->milters, argv[1].strval, 1)) != 0) {
/* Log reject etc. with correct HELO information. */
PUSH_STRING(saved_helo, state->helo_name, argv[1].strval);
err = check_milter_reply(state, err);
if (state->helo_name) {
myfree(state->helo_name);
state->helo_name = 0;
- if (SMTPD_STAND_ALONE(state) == 0 && smtpd_milters != 0)
- milter_abort(smtpd_milters);
+ if (state->milters != 0)
+ milter_abort(state->milters);
}
if (state->ehlo_argv) {
argv_free(state->ehlo_argv);
state->cleanup = state->dest->stream;
state->queue_id = mystrdup(state->dest->id);
if (SMTPD_STAND_ALONE(state) == 0) {
- if (smtpd_milters != 0
+ if (state->milters != 0
&& (state->saved_flags & MILTER_SKIP_FLAGS) == 0)
/* Send place-holder smtpd_milters list. */
- (void) milter_dummy(smtpd_milters, state->cleanup);
+ (void) milter_dummy(state->milters, state->cleanup);
rec_fprintf(state->cleanup, REC_TYPE_TIME, REC_TYPE_TIME_FORMAT,
REC_TYPE_TIME_ARG(state->arrival_time));
if (*var_filter_xport)
smtpd_chat_reply(state, "%s", err);
return (-1);
}
- if (smtpd_milters != 0
- && SMTPD_STAND_ALONE(state) == 0
+ if (state->milters != 0
&& (state->saved_flags & MILTER_SKIP_FLAGS) == 0) {
PUSH_STRING(saved_sender, state->sender, STR(state->addr_buf));
- err = milter_mail_event(smtpd_milters,
+ err = milter_mail_event(state->milters,
milter_argv(state, argc - 2, argv + 2));
if (err != 0) {
/* Log reject etc. with correct sender information. */
state->queue_id = 0;
}
if (state->sender) {
- if (SMTPD_STAND_ALONE(state) == 0 && smtpd_milters != 0)
- milter_abort(smtpd_milters);
+ if (state->milters != 0)
+ milter_abort(state->milters);
myfree(state->sender);
state->sender = 0;
}
} else {
err = smtpd_check_rcpt(state, STR(state->addr_buf));
}
- if (smtpd_milters != 0
+ if (state->milters != 0
&& (state->saved_flags & MILTER_SKIP_FLAGS) == 0) {
PUSH_STRING(saved_rcpt, state->recipient, STR(state->addr_buf));
state->milter_reject_text = err;
- milter_err = milter_rcpt_event(smtpd_milters,
+ milter_err = milter_rcpt_event(state->milters,
err == 0 ? MILTER_FLAG_NONE :
MILTER_FLAG_WANT_RCPT_REJ,
milter_argv(state, argc - 2, argv + 2));
smtpd_chat_reply(state, "%s", err);
return (-1);
}
- if (smtpd_milters != 0
- && SMTPD_STAND_ALONE(state) == 0
+ if (state->milters != 0
&& (state->saved_flags & MILTER_SKIP_FLAGS) == 0
- && (err = milter_data_event(smtpd_milters)) != 0
+ && (err = milter_data_event(state->milters)) != 0
&& (err = check_milter_reply(state, err)) != 0) {
smtpd_chat_reply(state, "%s", err);
return (-1);
*/
if (state->cleanup) {
if (SMTPD_STAND_ALONE(state) == 0) {
- if (smtpd_milters != 0
+ if (state->milters != 0
&& (state->saved_flags & MILTER_SKIP_FLAGS) == 0)
/* Send actual smtpd_milters list. */
- (void) milter_send(smtpd_milters, state->cleanup);
+ (void) milter_send(state->milters, state->cleanup);
if (state->saved_flags)
rec_fprintf(state->cleanup, REC_TYPE_FLGS, "%d",
state->saved_flags);
* XXX See exception below in code that overrides state->access_denied for
* compliance with RFC 2821 Sec 3.1.
*/
- if (smtpd_milters != 0 && (state->err & CLEANUP_STAT_WRITE) != 0)
+ if (state->milters != 0 && (state->err & CLEANUP_STAT_WRITE) != 0)
state->access_denied = mystrdup("421 4.3.0 Mail system error");
/*
state->addr);
return (-1);
}
- if (smtpd_milters != 0 && (err = milter_other_event(smtpd_milters)) != 0
+ if (state->milters != 0 && (err = milter_other_event(state->milters)) != 0
&& (err[0] == '5' || err[0] == '4')) {
state->error_mask |= MAIL_ERROR_POLICY;
smtpd_chat_reply(state, "%s", err);
smtpd_chat_reply(state, "503 Error: send HELO/EHLO first");
return (-1);
}
- if (smtpd_milters != 0 && (err = milter_other_event(smtpd_milters)) != 0
+ if (state->milters != 0 && (err = milter_other_event(state->milters)) != 0
&& (err[0] == '5' || err[0] == '4')) {
state->error_mask |= MAIL_ERROR_POLICY;
smtpd_chat_reply(state, "%s", err);
chat_reset(state, 0);
mail_reset(state);
rcpt_reset(state);
- if (smtpd_milters)
- milter_disc_event(smtpd_milters);
+ if (state->milters)
+ milter_disc_event(state->milters);
+ /* Following duplicates the top-level connect/disconnect handler. */
+ teardown_milters(state);
+ setup_milters(state);
vstream_longjmp(state->client, SMTP_ERR_NONE);
return (0);
}
smtpd_chat_reply(state, "501 5.5.4 Syntax: STARTTLS");
return (-1);
}
- if (smtpd_milters != 0 && (err = milter_other_event(smtpd_milters)) != 0) {
+ if (state->milters != 0 && (err = milter_other_event(state->milters)) != 0) {
if (err[0] == '5') {
state->error_mask |= MAIL_ERROR_POLICY;
smtpd_chat_reply(state, "%s", err);
*/
else {
err = 0;
- if (smtpd_milters != 0 && SMTPD_STAND_ALONE(state) == 0) {
- milter_macro_callback(smtpd_milters, smtpd_milter_eval,
+ if (state->milters != 0) {
+ milter_macro_callback(state->milters, smtpd_milter_eval,
(void *) state);
- if ((err = milter_conn_event(smtpd_milters, state->name,
+ if ((err = milter_conn_event(state->milters, state->name,
state->addr,
strcmp(state->port, CLIENT_PORT_UNKNOWN) ?
state->port : "0",
}
/* state->access_denied == 0 || cmdp->action == quit_cmd */
if (cmdp->name == 0) {
- if (smtpd_milters != 0
- && SMTPD_STAND_ALONE(state) == 0
- && (err = milter_unknown_event(smtpd_milters,
+ if (state->milters != 0
+ && (err = milter_unknown_event(state->milters,
argv[0].strval)) != 0
&& (err = check_milter_reply(state, err)) != 0) {
smtpd_chat_reply(state, "%s", err);
chat_reset(state, 0);
mail_reset(state);
rcpt_reset(state);
- if (smtpd_milters)
- milter_disc_event(smtpd_milters);
+ if (state->milters)
+ milter_disc_event(state->milters);
}
/* smtpd_format_cmd_stats - format per-command statistics */
return (lowercase(STR(buf)));
}
+/* setup_milters - set up Milters after a connection is established */
+
+static void setup_milters(SMTPD_STATE *state)
+{
+ const char *milter_string;
+
+ /*
+ * Postcondition: either state->milters is set, or the
+ * INPUT_TRANSP_MILTER flag is passed down-stream.
+ */
+ if (SMTPD_STAND_ALONE(state) == 0
+ && (smtpd_input_transp_mask & INPUT_TRANSP_MILTER) == 0
+ && ((smtpd_milter_maps
+ && (milter_string =
+ maps_find(smtpd_milter_maps, state->addr, 0)) != 0)
+ || *(milter_string = var_smtpd_milters) != 0)
+ && strcasecmp(milter_string, SMTPD_MILTERS_DISABLE) != 0) {
+ state->milters = milter_create(milter_string,
+ var_milt_conn_time,
+ var_milt_cmd_time,
+ var_milt_msg_time,
+ var_milt_protocol,
+ var_milt_def_action,
+ var_milt_conn_macros,
+ var_milt_helo_macros,
+ var_milt_mail_macros,
+ var_milt_rcpt_macros,
+ var_milt_data_macros,
+ var_milt_eoh_macros,
+ var_milt_eod_macros,
+ var_milt_unk_macros,
+ var_milt_macro_deflts);
+ }
+
+ /*
+ * Safety: disable non_smtpd_milters when not sending our own mail filter
+ * list. Otherwise the next stage could handle this message as a local
+ * submission.
+ */
+ if (state->milters == 0)
+ smtpd_input_transp_mask |= INPUT_TRANSP_MILTER;
+}
+
+/* teardown_milters - release resources */
+
+static void teardown_milters(SMTPD_STATE *state)
+{
+ if (state->milters) {
+ milter_free(state->milters);
+ state->milters = 0;
+ }
+}
+
/* smtpd_service - service one client */
*/
debug_peer_check(state.name, state.addr);
+ /*
+ * Set up Milters, or disable Milters down-stream.
+ */
+ setup_milters(&state); /* duplicates xclient_cmd */
+
/*
* Provide the SMTP service.
*/
*/
msg_info("disconnect from %s%s", state.namaddr,
smtpd_format_cmd_stats(state.buffer));
+ teardown_milters(&state); /* duplicates xclient_cmd */
smtpd_state_reset(&state);
debug_peer_restore();
}
var_smtpd_ehlo_dis_maps,
DICT_FLAG_LOCK);
+ /*
+ * Per-client Milter support.
+ */
+ if (*var_smtpd_milter_maps)
+ smtpd_milter_maps = maps_create(VAR_SMTPD_MILTER_MAPS,
+ var_smtpd_milter_maps,
+ DICT_FLAG_LOCK);
+
/*
* DNS reply filter.
*/
smtpd_proxy_opts =
smtpd_proxy_parse_opts(VAR_SMTPD_PROXY_OPTS, var_smtpd_proxy_opts);
- /*
- * Sendmail mail filters.
- *
- * XXX Should not do this when running in stand-alone mode. But that test
- * looks at VSTREAM_IN which is not available at this point.
- *
- * XXX Disable non_smtpd_milters when not sending our own mail filter list.
- */
- if ((smtpd_input_transp_mask & INPUT_TRANSP_MILTER) == 0) {
- if (*var_smtpd_milters)
- smtpd_milters = milter_create(var_smtpd_milters,
- var_milt_conn_time,
- var_milt_cmd_time,
- var_milt_msg_time,
- var_milt_protocol,
- var_milt_def_action,
- var_milt_conn_macros,
- var_milt_helo_macros,
- var_milt_mail_macros,
- var_milt_rcpt_macros,
- var_milt_data_macros,
- var_milt_eoh_macros,
- var_milt_eod_macros,
- var_milt_unk_macros,
- var_milt_macro_deflts);
- else
- smtpd_input_transp_mask |= INPUT_TRANSP_MILTER;
- }
-
/*
* Sanity checks. The queue_minfree value should be at least as large as
* (process_limit * message_size_limit) but that is unpractical, so we
VAR_MILT_DAEMON_NAME, DEF_MILT_DAEMON_NAME, &var_milt_daemon_name, 1, 0,
VAR_MILT_V, DEF_MILT_V, &var_milt_v, 1, 0,
VAR_MILT_MACRO_DEFLTS, DEF_MILT_MACRO_DEFLTS, &var_milt_macro_deflts, 0, 0,
+ VAR_SMTPD_MILTER_MAPS, DEF_SMTPD_MILTER_MAPS, &var_smtpd_milter_maps, 0, 0,
VAR_STRESS, DEF_STRESS, &var_stress, 0, 0,
VAR_UNV_FROM_WHY, DEF_UNV_FROM_WHY, &var_unv_from_why, 0, 0,
VAR_UNV_RCPT_WHY, DEF_UNV_RCPT_WHY, &var_unv_rcpt_why, 0, 0,
projects / thirdparty / postfix.git / commitdiff
