https://bugs.koozali.org/show_bug.cgi?id=12265
Bug ID: 12265
Summary: update sieve /spam script
Classification: Contribs
Product: SME Contribs
Version: 10.0
Hardware: ---
OS: ---
Status: CONFIRMED
Severity: normal
Priority: P3
Component: smeserver-dovecot-extras
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
Target Milestone: ---
Dec 13 18:53:50 mailserver dovecot: imap-login: Login: user=<user>,
method=PLAIN, rip=192.168.100.196, lip=192.168.100.4, mpid=18288, TLS,
session=<x>
Dec 13 18:53:50 mailserver dovecot: imap-login: Login: user=<smeserver>,
method=PLAIN, rip=192.168.100.196, lip=192.168.100.4, mpid=18294, TLS,
session=<z>
Dec 13 18:53:50 mailserver dovecot: imap-login: Login: user=<user>,
method=PLAIN, rip=192.168.100.196, lip=192.168.100.4, mpid=18295, TLS,
session=<w>
Dec 13 18:53:51 mailserver dovecot: imap(brianr): Error: write(program stdin)
failed: Broken pipe
Dec 13 18:53:51 mailserver dovecot: imap(brianr): program
`/usr/libexec/dovecot/learn-spam.sh' terminated with non-zero exit code 98
Dec 13 18:53:51 mailserver dovecot: imap(brianr): Error: sieve: pipe action:
failed to pipe message to program `learn-spam.sh': refer to server log for more
information. [2022-12-13 18:53:50]
Dec 13 18:53:51 mailserver dovecot: imap(brianr): sieve: left message in
mailbox 'junkmail'
Dec 13 18:53:51 mailserver dovecot: imap(brianr): Error: sieve: Execution of
script /usr/libexec/dovecot/sieve/report-spam.sieve failed
Dec 13 18:54:38 mailserver dovecot: lda(admin):
msgid=<[email protected]>: saved mail to INBOX
Dec 13 18:55:35 mailserver dovecot: imap-login: Disconnected (no auth attempts
in 0 secs): user=<>, rip=192.168.100.4, lip=192.168.100.4, TLS,
session=<ezNHKrrvJoPAqGQE>
we can see the current script date from 2017 see
https://git.fws.fr/fws/smeserver-dovecot-extras/commit/fca6acab5c01ce5e507603c8b639bf21089154a9.patch
>From fca6acab5c01ce5e507603c8b639bf21089154a9 Mon Sep 17 00:00:00 2001
From: Daniel Berteaud <[email protected]>
Date: Mon, 6 Mar 2017 17:53:33 +0100
Subject: [PATCH] Spam learning by moving to/from junkmail
dovecot suggest newer scripts
https://doc.dovecot.org/configuration_manual/howto/antispam_with_sieve/?highlight=imap%20filter%20sieve%20plugin
protocol imap {
mail_plugins = $mail_plugins imap_sieve
}
plugin {
sieve_plugins = sieve_imapsieve sieve_extprograms
# From elsewhere to Spam folder
imapsieve_mailbox1_name = Spam
imapsieve_mailbox1_causes = COPY
imapsieve_mailbox1_before = file:/usr/lib/dovecot/sieve/report-spam.sieve
# From Spam folder to elsewhere
imapsieve_mailbox2_name = *
imapsieve_mailbox2_from = Spam
imapsieve_mailbox2_causes = COPY
imapsieve_mailbox2_before = file:/usr/lib/dovecot/sieve/report-ham.sieve
sieve_pipe_bin_dir = /usr/lib/dovecot/sieve
sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment
}
report-spam.sieve
require ["vnd.dovecot.pipe", "copy", "imapsieve", "environment", "variables"];
if environment :matches "imap.user" "*" {
set "username" "${1}";
}
pipe :copy "sa-learn-spam.sh" [ "${username}" ];
report-ham.sieve
require ["vnd.dovecot.pipe", "copy", "imapsieve", "environment", "variables"];
if environment :matches "imap.mailbox" "*" {
set "mailbox" "${1}";
}
if string "${mailbox}" "Trash" {
stop;
}
if environment :matches "imap.user" "*" {
set "username" "${1}";
}
pipe :copy "sa-learn-ham.sh" [ "${username}" ];
Shell scripts (untested)
sa-learn-spam.sh
#!/bin/sh
# you can also use tcp/ip here, consult spamc(1)
exec /usr/bin/spamc -u ${1} -L spam
sa-learn-ham.sh
#!/bin/sh
# you can also use tcp/ip here, consult spamc(1)
exec /usr/bin/spamc -u ${1} -L ham
sa-learn can cause lockout of the user for few minutes on initial run
sa-learn-spam.sh
#!/bin/sh
exec /usr/bin/sa-learn -u ${1} --spam
sa-learn-ham.sh
#!/bin/sh
exec /usr/bin/sa-learn -u ${1} --ham
If spamd is being used and the administrator is willing to accept the potential
security issues of allowing unauthenticated learning of spam/ham, spamd can be
invoked with the –allow-tell option and spamc with the –learntype= option.
Please consult the man pages of spamd and spamc for further details.
we might have done some changes to spamd config thate conflict with dovecot
sieve...
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