[Dovecot] Issues with dovecot-antipsam plugin

Thu Aug 29 08:36:17 EEST 2013

Hello list,

I have a postfix 2.11 with dovecot 2.2.5 instance. I have configured and
installed anavisd-new to use Spamassassin. I want to train the filter. For
that i choose dovecot's antispam plugin using mailtrain backend. I compiled
and installed the latest version of the antispam plugin from
http://hg.dovecot.org/dovecot-antispam-plugin/rev/5ebc6aae4d7c

The configuration is below.

Whenever I receive an email, the LMTP process segfaults. If I comment out
the antispam plugin part in the config files, all works good. THis leads me
to believe the issue is with antispam plugin, or its configuration.

Here is what i see in /var/log/mailllog

Aug 28 23:06:31 hostname.tld postfix/qmgr[1437]: 055F6345E: from=<
sender at example.com>, size=10370, nrcpt=1 (queue active)
Aug 28 23:06:31 hostname.tld postfix/smtpd[5512]: disconnect from
localhost[127.0.0.1]
Aug 28 23:06:31 hostname.tld amavis[5369]: (05369-05) Passed SPAM
{RelayedTaggedInbound,Quarantined}, [74.125.82.176]:51219 [74.125.82.176] <
sender at example.com> -> <email at mydomain.tld>, quarantine:
spam-J09TFNU33sxa.gz, Queue-ID: 3A8093119, Message-ID: <
CAMGVk5vH9YzkNFJ3xnWJ0060vpuf1PPzaCHWx71AmGF_qgJTmg at mail.gmail.com>,
mail_id: J09TFNU33sxa, Hits: 12.123, size: 9323, queued_as: 055F6345E,
dkim_sd=20120113:gmail.com, 606 ms
Aug 28 23:06:31 hostname.tld postfix/lmtp[5510]: 3A8093119:
to=<email at mydomain.tld>, relay=127.0.0.1[127.0.0.1]:10024, delay=1.6,
delays=0.94/0/0/0.61, dsn=2.0.0, status=sent (250 2.0.0 from
MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 055F6345E)
Aug 28 23:06:31 hostname.tld postfix/qmgr[1437]: 3A8093119: removed
Aug 28 23:06:31 hostname.tld dovecot: lmtp(5514): Connect from local
Aug 28 23:06:31 hostname.tld dovecot: lmtp(5514): Fatal: master:
service(lmtp): child 5514 killed with signal 11 (core dumps disabled)
Aug 28 23:06:31 hostname.tld postfix/lmtp[5513]: 055F6345E:
to=<email at mydomain.tld>, relay=hostname.tld[/opt/var/postfix/dovecot-lmtp],
delay=0.09, delays=0.04/0/0.04/0, dsn=4.4.2, status=deferred (lost
connection with hostname.tld[/opt/var/postfix/dovecot-lmtp] while sending
end of data -- message may be sent more than once)

Can someone help in fixing the issue…

-Thanks in advance
Vijay

######doveconf -n
# 2.2.5: /opt/dovecot/2.2.5/etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-358.14.1.el6.x86_64 x86_64 CentOS release 6.4 (Final)
ext4
auth_mechanisms = plain login digest-md5 cram-md5
auth_socket_path = /opt/var/dovecot/run/auth-userdb
base_dir = /opt/var/dovecot/run/
debug_log_path = /var/log/dovecot-debug.log
hostname = mail1 at rvijay.me
mail_debug = yes
mail_location = maildir:/opt/mailbox/%d/%n/Maildir
mail_plugin_dir = /opt/dovecot/2.2.5/lib/dovecot/
mail_plugins = " virtual quota antispam zlib"
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character
vacation subaddress comparator-i;ascii-numeric relational regex imap4flags
copy include variables body enotify environment mailbox date ihave
namespace inbox {
  inbox = yes
  location =
  mailbox Drafts {
    auto = subscribe
    special_use = \Drafts
  }
  mailbox Junk {
    auto = subscribe
    special_use = \Junk
  }
  mailbox Sent {
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Spam {
    auto = subscribe
  }
  mailbox Trash {
    auto = subscribe
    special_use = \Trash
  }
  prefix =
  separator = /
  type = private
}
passdb {
  args = /opt/dovecot/2.2.5/etc/dovecot/conf.d/dovecot-sql.conf.ext
  driver = sql
}
plugin {
  antispam_allow_append_to_spam = no
  antispam_backend = mailtrain
  antispam_mail_notspam = --ham
  antispam_mail_sendmail = /opt/dovecot/2.2.5/bin/sa-learn-pipe.sh
  antispam_mail_sendmail_args = -u vmail
  antispam_mail_spam = --spam
  antispam_mail_tmpdir = /tmp
  antispam_spam = Spam
  antispam_trash = Trash
  mail_log_events = delete undelete expunge copy mailbox_delete
mailbox_rename
  mail_log_fields = uid box msgid size
  quota = maildir:User quota
  quota_grace = 10%%
  quota_rule = *:storage=1GB
  quota_rule2 = Trash:storage=+10%%
  quota_rule3 = Spam:storage=+20%%
  quota_status_nouser = DUNNO
  quota_status_overquota = 450 4.2.2 Mailbox is full. Try again later
  quota_status_success = DUNNO
  quota_warning = storage=95%% quota-warning 95 %u
  quota_warning2 = storage=80%% quota-warning 80 %u
  quota_warning3 = -storage=100%% quota-warning below %u
  sieve = ~/.dovecot.sieve
  sieve_before = /opt/var/dovecot/sieve/
  sieve_dir = ~/sieve
  sieve_global_dir = /opt/var/dovecot/sieve
  zlib_save = bz2
  zlib_save_level = 9
}
protocols = imap lmtp sieve
service auth {
  unix_listener /opt/var/postfix/dovecot-auth {
    group = postfix
    mode = 0660
    user = postfix
  }
}
service imap-login {
  inet_listener imap {
    port = 143
  }
}
service lmtp {
  unix_listener /opt/var/postfix/dovecot-lmtp {
    group = postfix
    mode = 0660
    user = postfix
  }
}
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }
  service_count = 10
  vsz_limit = 64 M
}
service managesieve {
  process_limit = 1024
}
service quota-status {
  client_limit = 1
  executable = quota-status -p postfix
  inet_listener {
    port = 12340
  }
}
service quota-warning {
  executable = script /opt/dovecot/2.2.5/etc/dovecot/conf.d/quota-warning.sh
  user = vmail
}
shutdown_clients = no
ssl_ca = </opt/dovecot/2.2.5/etc/dovecot/ssl/mayca.crt.pem
ssl_cert = </opt/dovecot/2.2.5/etc/dovecot/ssl/cert.pem
ssl_key = </opt/dovecot/2.2.5/etc/dovecot/ssl/key.key
ssl_parameters_regenerate = 30 hours
submission_host = 127.0.0.1:587
userdb {
  driver = prefetch
}
userdb {
  args = /opt/dovecot/2.2.5/etc/dovecot/conf.d/dovecot-sql.conf.ext
  driver = sql
}
protocol lda {
  mail_plugins = " virtual quota antispam zlib sieve zlib"
}
protocol imap {
  mail_plugins = " virtual quota antispam zlib imap_quota imap_zlib"
}
protocol lmtp {
  debug_log_path = /var/log/dovecot-lmtp-debg.log
  mail_plugins = " virtual quota antispam zlib sieve zlib"
}