Need a bit of help with the antispam plugin

[Steffen Kaiser]

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On Tue, 31 Mar 2015, Anthony Papillion wrote:

> Date: Tue, 31 Mar 2015 18:37:34 -0500
> From: Anthony Papillion <anthony at cajuntechie.org>
> To: dovecot at dovecot.org
> Subject: Need a bit of help with the antispam plugin
> 
> Hello Everyone,
>
> I'm running the antispam plugin on Dovecot 2.0.19 on Ubuntu Server 14.04
> and I can't seem to get it to work. In the IMAP section of dovecot.conf
> I have the following lines:
>
> protocol imap {
>    mail_plugins = $mail_plugins imap_quota imap_acl antispam
> #    mail_plugins = $mail_plugins imap_quota imap_acl
>    imap_client_workarounds = tb-extra-mailbox-sep
>
>    # Maximum number of IMAP connections allowed for a user from each IP
> address.
>    # NOTE: The username is compared case-sensitively.
>    # Default is 10.
>    # Increase it to avoid issue like below:
>    # "Maximum number of concurrent IMAP connections exceeded"
>    mail_max_userip_connections = 20
>
> plugin {
>  antispam_debug_target = syslog
>  antispam_verbose_debug = 1
>
>  antispam_backend = pipe
>  antispam_trash = Trash
>  antispam_spam = Junk
>  antispam_pipe_program_spam_arg = --spam
>  antispam_pipe_program_notspam_arg = --ham
>  antispam_pipe_program = /usr/bin/sa-learn
>  antispam_pipe_program_args = --username=%Lu
> }
> }

replace the value of antispam_pipe_program with a script:

======
#/bin/bash

(
set -x
id -a
date
/usr/bin/sa-learn "$@"
rc=$?
echo rc=$rc
exit $rc
) >/tmp/antispam.$$.log 2>&1
====

Then check on the command line, what happens if you invoke the command 
line as the user displayed by the id command.

> For some reason, when I try to move something to Junk, I get the
> following in my syslog:
>
> Mar 31 18:27:16 anonymail imap: antispam: plugin initialising (2.0-notgit)
> Mar 31 18:27:16 anonymail imap: antispam: verbose debug enabled
> Mar 31 18:27:16 anonymail imap: antispam: "Junk" is exact match spam folder
> Mar 31 18:27:16 anonymail imap: antispam: no unsure folders
> Mar 31 18:27:16 anonymail imap: antispam: "Trash" is exact match trash
> folder
> Mar 31 18:27:16 anonymail imap: antispam: pipe backend spam argument =
> --spam
> Mar 31 18:27:16 anonymail imap: antispam: pipe backend not-spam argument
> = --ham
> Mar 31 18:27:16 anonymail imap: antispam: pipe backend program =
> /usr/bin/sa-learn
> Mar 31 18:27:16 anonymail imap: antispam: pipe backend program arg[0] =
> --username=anthony at cajuntechie.org
> Mar 31 18:27:16 anonymail imap: antispam: pipe backend tmpdir /tmp
> Mar 31 18:27:19 anonymail imap: antispam: mailbox_is_unsure(Junk): 0
> Mar 31 18:27:19 anonymail imap: antispam: mailbox_is_trash(INBOX): 0
> Mar 31 18:27:19 anonymail imap: antispam: mailbox_is_trash(Junk): 0
> Mar 31 18:27:19 anonymail imap: antispam: mail copy: from trash: 0, to
> trash: 0
> Mar 31 18:27:19 anonymail imap: antispam: mailbox_is_spam(INBOX): 0
> Mar 31 18:27:19 anonymail imap: antispam: mailbox_is_spam(Junk): 1
> Mar 31 18:27:19 anonymail imap: antispam: mailbox_is_unsure(INBOX): 0
> Mar 31 18:27:19 anonymail imap: antispam: mail copy: src spam: 0, dst
> spam: 1, src unsure: 0
> Mar 31 18:27:19 anonymail imap: antispam: running mailtrain backend
> program /usr/bin/sa-learn
> Mar 31 18:27:19 anonymail imap: antispam: running mailtrain backend
> program /usr/bin/sa-learn
> Mar 31 18:27:19 anonymail imap: antispam: running mailtrain backend
> program parameter 1 --username=anthony at cajuntechie.org
> Mar 31 18:27:19 anonymail imap: antispam: running mailtrain backend
> program parameter 2 --spam
> Mar 31 18:27:21 anonymail imap: antispam: run program failed with exit
> code -1
>
> This is probably a permissions issue but I'm not able to debug it. Can
> anyone offer me any clues as to what I might be doing wrong or how I
> might fix it?
>
> Thanks,
> Anthony
>
>

- -- 
Steffen Kaiser
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