Hello,
I am attempting to use the Antispam plug-in for Dovecot and am having trouble with the implementation.
My configuration is Dovecot (1.2.9) + Sieve + SpamAssassin on Ubuntu 10.04. Mail that SpamAssassin tags as SPAM is moved into the affected user's "Junk" folder (/var/vmail/example.com/user/Maildir/.Junk).
I followed the Wiki article at http://wiki2.dovecot.org/Plugins/Antispam . After restarting Dovecot, my IMAP client (Thunderbird v15) reports the following whenever I attempt to move mail from Inbox to "Junk" directory:
"[CANNOT] antispam plugin not configured"
That exact phrase appears only once in a Google search ( http://dovecot-antispam.sourcearchive.com/documentation/1.1plus-p20090218.gi... ):
if (!hamaddr || !spamaddr) { mail_storage_set_error(t->box->storage, ME(NOTPOSSIBLE) "antispam plugin not configured"); return -1; }
Based on the surrounding source code, which I realize may be old, it seems that Ham and Spam addresses are required, or similar.
I am using the following configuration options:
/etc/dovecot/dovecot.conf
## IMAP specific settings protocol imap { mail_executable = /usr/lib/dovecot/rawlog /usr/lib/dovecot/imap mail_plugins = quota imap_quota antispam }
# [...]
plugin { antispam_debug_target = syslog antispam_verbose_debug = 1 antispam_backend = pipe antispam_pipe_program = /usr/bin/sa-learn-pipe.sh antispam_pipe_program_spam_arg = --spam antispam_pipe_program_notspam_arg = --ham antispam_spam_pattern_ignorecase = spam;junk }
For what it's worth, the logging directives seem not to have any effect (and perhaps the rest of the directives do not, either, hence the problem I'm having).
I tried changing the above directives to their older directive names (I also changed the order slightly, which may be irrelevant):
plugin { antispam_debug_target = syslog antispam_verbose_debug = 1 antispam_backend = pipe antispam_mail_spam = --spam antispam_mail_notspam = --ham antispam_mail_sendmail = /usr/bin/sa-learn-pipe.sh antispam_spam_pattern_ignorecase = spam;junk }
This changed the message in my IMAP client, when attempting to move a message from my Inbox to the Junk folder, to:
"[SERVERBUG] failed to send mail"
Does this indicate a problem with the "/usr/bin/sa-learn-pipe.sh" script that is provided on the Wiki (cited above)?
Also, it was not clear from the documentation ( http://johannes.sipsolutions.net/files/antispam.html ) whether or not the Pipe back-end requires the X-DSPAM-Signature header, and if so, to what value it should be set when using SpamAssassin.
Thanks for any pointers,
-Ben