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86e4d161 MS |
1 | .\" |
2 | .\" Copyright (c) 2008 | |
3 | .\" The DragonFly Project. All rights reserved. | |
4 | .\" | |
5 | .\" Redistribution and use in source and binary forms, with or without | |
6 | .\" modification, are permitted provided that the following conditions | |
7 | .\" are met: | |
8 | .\" | |
9 | .\" 1. Redistributions of source code must retain the above copyright | |
10 | .\" notice, this list of conditions and the following disclaimer. | |
11 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
12 | .\" notice, this list of conditions and the following disclaimer in | |
13 | .\" the documentation and/or other materials provided with the | |
14 | .\" distribution. | |
15 | .\" 3. Neither the name of The DragonFly Project nor the names of its | |
16 | .\" contributors may be used to endorse or promote products derived | |
17 | .\" from this software without specific, prior written permission. | |
18 | .\" | |
19 | .\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
20 | .\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
21 | .\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
22 | .\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
23 | .\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
24 | .\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
25 | .\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
26 | .\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
27 | .\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
28 | .\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
29 | .\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
30 | .\" SUCH DAMAGE. | |
31 | .\" | |
fcadfbe3 | 32 | .Dd April 22, 2010 |
86e4d161 MS |
33 | .Dt DMA 8 |
34 | .Os | |
35 | .Sh NAME | |
36 | .Nm dma | |
37 | .Nd DragonFly Mail Agent | |
38 | .Sh SYNOPSIS | |
39 | .Nm | |
f734c0ae | 40 | .Op Fl DiOt |
30e2d711 SS |
41 | .Op Fl A Ns Ar mode |
42 | .Op Fl b Ns Ar mode | |
86e4d161 MS |
43 | .Op Fl f Ar sender |
44 | .Op Fl L Ar tag | |
30e2d711 | 45 | .Op Fl o Ns Ar option |
86e4d161 | 46 | .Op Fl r Ar sender |
30e2d711 | 47 | .Op Fl q Ns Op Ar arg |
86e4d161 MS |
48 | .Op Ar recipient ... |
49 | .Sh DESCRIPTION | |
50 | .Nm | |
51 | is a small Mail Transport Agent (MTA), designed for home and office use. | |
52 | It accepts mails from locally installed Mail User Agents (MUA) and | |
53 | delivers the mails either locally or to a remote destination. | |
54 | Remote delivery includes several features like TLS/SSL support and SMTP | |
15386ecd | 55 | authentication. |
86e4d161 MS |
56 | .Pp |
57 | .Nm | |
58 | is not intended as a replacement for real, big MTAs like | |
59 | .Xr sendmail 8 | |
60 | or | |
0f215b8d | 61 | .Xr postfix 1 . |
86e4d161 MS |
62 | Consequently, |
63 | .Nm | |
64 | does not listen on port 25 for incoming connections. | |
65 | .Pp | |
66 | The options are as follows: | |
67 | .Bl -tag -width indent | |
30e2d711 SS |
68 | .It Fl A Ns Ar mode |
69 | .Fl \&Ac | |
86e4d161 | 70 | acts as a compatibility option for sendmail. |
30e2d711 | 71 | .It Fl b Ns Ar mode |
bca4c72a SS |
72 | .Bl -tag -width indent |
73 | .It Fl bp | |
74 | List all mails currently stored in the mail queue. | |
75 | .It Fl bq | |
76 | Queue the mail, but don't attempt to deliver it. | |
77 | See also the | |
78 | .Sq DEFER | |
79 | config file setting below. | |
80 | .El | |
81 | .Pp | |
82 | All other | |
83 | .Ar mode Ns | |
84 | s are are ignored. | |
86e4d161 MS |
85 | .It Fl D |
86 | Don't run in the background. | |
87 | Useful for debugging. | |
88 | .It Fl f Ar sender | |
fcadfbe3 | 89 | Set sender address (envelope-from) to |
86e4d161 | 90 | .Ar sender . |
fcadfbe3 SS |
91 | This overrides the value of the environment variable |
92 | .Ev EMAIL . | |
86e4d161 MS |
93 | .It Fl i |
94 | Ignore dots alone on lines by themselves in incoming messages. | |
95 | This should be set if you are reading data from a file. | |
96 | .It Fl L Ar tag | |
97 | Set the identifier used in syslog messages to the supplied | |
98 | .Ar tag . | |
99 | This is a compatibility option for sendmail. | |
9a0b96be MS |
100 | .It Fl O |
101 | This is a compatibility option for sendmail. | |
30e2d711 | 102 | .It Fl o Ns Ar option |
86e4d161 | 103 | Specifying |
30e2d711 | 104 | .Fl oi |
86e4d161 MS |
105 | is synonymous to |
106 | .Fl i . | |
107 | All other options are ignored. | |
30e2d711 | 108 | .It Fl q Ns Op Ar arg |
86e4d161 | 109 | Process saved messages in the queue. |
30e2d711 | 110 | The argument is optional and ignored. |
86e4d161 MS |
111 | .It Fl r Ar sender |
112 | Same as | |
113 | .Fl f . | |
f734c0ae SS |
114 | .It Fl t |
115 | Obtain recipient addresses from the message header. | |
30e2d711 SS |
116 | .Nm |
117 | will parse the | |
f734c0ae SS |
118 | .Li To: , |
119 | .Li Cc: , | |
120 | and | |
121 | .Li Bcc: | |
122 | headers. | |
123 | The | |
124 | .Li Bcc: | |
125 | header will be removed independent of whether | |
126 | .Fl t | |
127 | is specified or not. | |
86e4d161 MS |
128 | .El |
129 | .Sh CONFIGURATION | |
130 | .Nm | |
1bd6c537 | 131 | can be configured with two config files: |
86e4d161 MS |
132 | .Pp |
133 | .Bl -bullet -compact | |
134 | .It | |
135 | auth.conf | |
136 | .It | |
137 | dma.conf | |
86e4d161 MS |
138 | .El |
139 | .Pp | |
1bd6c537 | 140 | These two files are stored per default in |
86e4d161 | 141 | .Pa /etc/dma . |
86e4d161 MS |
142 | .Sh FILE FORMAT |
143 | Every file contains parameters of the form | |
144 | .Sq name value . | |
145 | Lines containing boolean values are set to | |
146 | .Sq NO | |
147 | if the line is commented and to | |
148 | .Sq YES | |
149 | if the line is uncommented. | |
150 | Empty lines or lines beginning with a | |
151 | .Sq # | |
152 | are ignored. | |
153 | Parameter names and their values are case sensitive. | |
154 | .Sh PARAMETERS | |
155 | .Ss auth.conf | |
156 | SMTP authentication can be configured in | |
157 | .Pa auth.conf . | |
158 | Each line has the format | |
159 | .Dq Li user|smarthost:password . | |
160 | .Ss dma.conf | |
161 | Most of the behaviour of | |
162 | .Nm | |
163 | can be configured in | |
164 | .Pa dma.conf . | |
86e4d161 MS |
165 | .Bl -tag -width 4n |
166 | .It Ic SMARTHOST Xo | |
167 | (string, default=empty) | |
168 | .Xc | |
169 | If you want to send outgoing mails via a smarthost, set this variable to | |
170 | your smarthosts address. | |
171 | .It Ic PORT Xo | |
172 | (numeric, default=25) | |
173 | .Xc | |
174 | Use this port to deliver remote emails. | |
175 | Only useful together with the | |
176 | .Sq SMARTHOST | |
177 | option, because | |
178 | .Nm | |
b53f68fc SW |
179 | will deliver all mails to this port, regardless of whether a smarthost is set |
180 | or not. | |
86e4d161 | 181 | .It Ic ALIASES Xo |
db93ed9b | 182 | (string, default=/etc/aliases) |
86e4d161 MS |
183 | .Xc |
184 | Path to the local aliases file. | |
185 | Just stick with the default. | |
a803c7a6 SS |
186 | The aliases file is of the format |
187 | .Dl nam: dest1 dest2 ... | |
188 | In this case, mails to | |
189 | .Li nam | |
190 | will instead be delivered to | |
191 | .Li dest1 | |
192 | and | |
193 | .Li dest2 , | |
194 | which in turn could be entries in | |
195 | .Pa /etc/aliases . | |
196 | The special name | |
197 | .Ql * | |
198 | can be used to create a catch-all alias, which gets used if no other | |
199 | matching alias is found. | |
200 | Use the catch-all alias only if you don't want any local mail to be | |
201 | delivered. | |
86e4d161 MS |
202 | .It Ic SPOOLDIR Xo |
203 | (string, default=/var/spool/dma) | |
204 | .Xc | |
205 | Path to | |
206 | .Nm Ap s | |
207 | spool directory. | |
208 | Just stick with the default. | |
86e4d161 | 209 | .It Ic AUTHPATH Xo |
a069120d | 210 | (string, default=not set) |
86e4d161 MS |
211 | .Xc |
212 | Path to the | |
213 | .Sq auth.conf | |
214 | file. | |
86e4d161 MS |
215 | .It Ic SECURETRANS Xo |
216 | (boolean, default=commented) | |
217 | .Xc | |
d28187a3 | 218 | Uncomment if you want TLS/SSL secured transfer. |
86e4d161 MS |
219 | .It Ic STARTTLS Xo |
220 | (boolean, default=commented) | |
221 | .Xc | |
d28187a3 | 222 | Uncomment if you want to use STARTTLS. |
86e4d161 MS |
223 | Only useful together with |
224 | .Sq SECURETRANS . | |
4dea15f5 PP |
225 | .It Ic OPPORTUNISTIC_TLS Xo |
226 | (boolean, default=commented) | |
227 | .Xc | |
228 | Uncomment if you want to allow the STARTTLS negotiation to fail. | |
229 | Most useful when | |
230 | .Nm | |
231 | is used without a smarthost, delivering remote messages directly to | |
232 | the outside mail exchangers; in opportunistic TLS mode, the connection will | |
233 | be encrypted if the remote server supports STARTTLS, but an unencrypted | |
234 | delivery will still be made if the negotiation fails. | |
235 | Only useful together with | |
236 | .Sq SECURETRANS | |
237 | and | |
238 | .Sq STARTTLS . | |
86e4d161 MS |
239 | .It Ic CERTFILE Xo |
240 | (string, default=empty) | |
241 | .Xc | |
242 | Path to your SSL certificate file. | |
dfce7456 MS |
243 | .It Ic SECURE Xo |
244 | (boolean, default=commented) | |
245 | .Xc | |
d28187a3 | 246 | Uncomment this entry and change it to |
dfce7456 MS |
247 | .Sq INSECURE |
248 | to use plain text SMTP login over an insecure connection. | |
249 | You have to rename this variable manually to prevent that you send your | |
5a2a19a6 | 250 | password accidentally over an insecure connection. |
86e4d161 MS |
251 | .It Ic DEFER Xo |
252 | (boolean, default=commented) | |
253 | .Xc | |
d28187a3 | 254 | Uncomment if you want that |
86e4d161 MS |
255 | .Nm |
256 | defers your mail. | |
257 | You have to flush your mail queue manually with the | |
258 | .Fl q | |
259 | option. | |
260 | This option is handy if you are behind a dialup line. | |
8ee63931 SS |
261 | .It Ic FULLBOUNCE Xo |
262 | (boolean, default=commented) | |
263 | .Xc | |
264 | Uncomment if you want the bounce message to include the complete original | |
265 | message, not just the headers. | |
ebe7ade7 SS |
266 | .It Ic MAILNAME Xo |
267 | (string, default=empty) | |
268 | .Xc | |
27905878 SS |
269 | The internet hostname |
270 | .Nm | |
271 | uses to identify the host. | |
272 | If not set or empty, the result of | |
dda8c366 | 273 | .Xr gethostname 3 |
27905878 SS |
274 | is used. |
275 | If | |
ebe7ade7 | 276 | .Sq MAILNAME |
27905878 SS |
277 | is an absolute path to a file, the first line of this file will be used |
278 | as the hostname. | |
5bc72de8 SS |
279 | .It Ic MASQUERADE Xo |
280 | (string, default=empty) | |
281 | .Xc | |
dda8c366 | 282 | Masquerade the envelope-from addresses with this address/hostname. |
5bc72de8 SS |
283 | Use this setting if mails are not accepted by destination mail servers |
284 | because your sender domain is invalid. | |
285 | This setting is overridden by the | |
286 | .Fl f | |
287 | flag and the | |
288 | .Ev EMAIL | |
289 | environment variable. | |
290 | .Pp | |
291 | If | |
292 | .Sq MASQUERADE | |
293 | does not contain a | |
294 | .Li @ | |
295 | sign, the string is interpreted as a host name. | |
296 | For example, setting | |
297 | .Sq MASQUERADE | |
298 | to | |
299 | .Ql john@ | |
300 | on host | |
301 | .Ql hamlet | |
302 | will send all mails as | |
303 | .Ql john@hamlet ; | |
304 | setting it to | |
305 | .Ql percolator | |
306 | will send all mails as | |
307 | .Ql Sm off Va username @percolator . | |
308 | .Sm on | |
86e4d161 | 309 | .El |
fcadfbe3 SS |
310 | .Ss Environment variables |
311 | The behavior of | |
312 | .Nm | |
313 | can be influenced by some environment variables. | |
fcadfbe3 SS |
314 | .Bl -tag -width 4n |
315 | .It Ev EMAIL Xo | |
316 | .Xc | |
317 | Used to set the sender address (envelope-from). | |
318 | Use a plain address, in the form of | |
319 | .Li user@example.com . | |
320 | This value will be overridden when the | |
321 | .Fl f | |
322 | flag is used. | |
323 | .El | |
86e4d161 MS |
324 | .Sh SEE ALSO |
325 | .Xr mailaddr 7 , | |
326 | .Xr mailwrapper 8 , | |
327 | .Xr sendmail 8 | |
328 | .Rs | |
329 | .%A "J. B. Postel" | |
330 | .%T "Simple Mail Transfer Protocol" | |
331 | .%O RFC 821 | |
332 | .Re | |
333 | .Rs | |
334 | .%A "J. Myers" | |
335 | .%T "SMTP Service Extension for Authentication" | |
336 | .%O RFC 2554 | |
337 | .Re | |
338 | .Rs | |
339 | .%A "P. Hoffman" | |
340 | .%T "SMTP Service Extension for Secure SMTP over TLS" | |
341 | .%O RFC 2487 | |
342 | .Re | |
343 | .Sh HISTORY | |
344 | The | |
345 | .Nm | |
346 | utility first appeared in | |
347 | .Dx 1.11 . | |
348 | .Sh AUTHORS | |
349 | .Nm | |
350 | was written by | |
351 | .An Matthias Schmidt Aq matthias@dragonflybsd.org | |
352 | and | |
353 | .An Simon Schubert Aq corecode@dragonflybsd.org . |