Need a bit of help with the antispam plugin

[John Perry]

On 2015/04/07 04:22, Steffen Kaiser wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> 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

I'm having the exact same issue. I applied the change you recommended to 
Anthony (I.E. create the script and call that rather than sa-learn 
directly) and I see that the resultant log file in /tmp is never 
created. Any additional suggestions would be greatly appreciated!

-- 
John Perry - WX5JP
http://www.jpunix.net
https://www.digitalocean.com/?refcode=b90b690ca5bb
https://lastpass.com/f?3921926