example-config: Added mailbox_list_index.

diff --git a/doc/example-config/conf.d/10-mail.conf b/doc/example-config/conf.d/10-mail.conf
index cc2449c18fdf3d5dc3c606a98f9b2a2382dbb3de..7a9ea6fc637c67363895ddfbffcc91cf93761fac 100644 (file)
--- a/doc/example-config/conf.d/10-mail.conf
+++ b/doc/example-config/conf.d/10-mail.conf
@@ -211,6 +211,10 @@ namespace inbox {
 ## Mailbox handling optimizations
 ##
 
+# Mailbox list indexes can be used to optimize IMAP STATUS commands. They are
+# also required for IMAP NOTIFY extension to be enabled.
+#mailbox_list_index = no
+
 # The minimum number of mails in a mailbox before updates are done to cache
 # file. This allows optimizing Dovecot's behavior to do less disk writes at
 # the cost of more disk reads.