Author Topic: SPAM Filter Questions  (Read 1010 times)

jklapel

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SPAM Filter Questions
« on: November 25, 2015, 09:24:09 pm »
We're moving our email to a Zentyal server and as I set up this new server, I have a few questions in regards to how the spam filtering works.  We get an extremely large amount of spam every day (thousands to tens of thousands), so we want to tune the spam filter as best we can.  At one point, it looks like the dovecot-antispam-plugin was installed, but then was removed in Zentyal 2.2 due to a "serious bug".  (See https://wiki.zentyal.org/wiki/Zentyal_2.2_Changelog#mail.)  I never saw it added back in any more recent changelogs, however, the dovecot-antispam command is recognized at the Zentyal command prompt.  Does anyone know if this is included again in Zentyal 4.2 (or if another module performs the same function)?

Also, I noticed that in the the documentation for Zentyal 4.1 it lists the option of spam/ham learning accounts.  (See https://wiki.zentyal.org/wiki/En/4.1/Mail_filter#SMTP_mail_filter.) However, I do not see these options in 4.1 nor 4.2.  Were these removed?

jbahillo

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Re: SPAM Filter Questions
« Reply #1 on: November 26, 2015, 12:43:50 pm »
Zentyal-mailfilter is no longer available for community users. It is still available under commercial releases, though.

Spamassasin integration is done through AMAVIS, on MTA instead of on MDA, therefore such a plugin is not needed.

Finally, yes, HAM/SPAM accounts have been removed. You still can train spam heuristic filters by uploading a mailbox with spam entries thrugh Zentyal interface (or using sa-learn)