Understanding Postfix & Spamassassin

[Eric Pretorious]

I'm trying to troubleshoot Spamassassin and can't quite understand how messages are being routed through the system.

Is there a KB article or a page in the Advanced Administration Guide, Parallels Plesk Panel 11.0 for Linux that describes the operation of Postfix with Spamassassin? Something like this diagram (from the article "Fighting Spam with SpamAssassin and Postfix") would be a great starting point:



e.g.,
Steps #3 & #4 from the section "Create your own Content Filter" provide some insight.
The KB article "How to recreate mail handlers in Parallels Plesk Panel 10.4 and later" also provided a bit of good insight.

 

[Eric Pretorious]

I'm trying to troubleshoot Spamassassin and can't quite understand how messages are being routed through the system.

Is there a KB article or a page in the Advanced Administration Guide, Parallels Plesk Panel 11.0 for Linux that describes the operation of Postfix with Spamassassin? Something like this diagram (from the article "Fighting Spam with SpamAssassin and Postfix") would be a great starting point:

The Entity Relationship Diagram (from the article "Fighting Spam/Viruses with Amavisd-New, Maia and Postfix") provides a good overview of the interaction between Postfix, Spamassassin, and Amavisd-New:



Do you suppose that there might be something like it for the the Plesk Panel implementation of Postfix+Spamassassin?

 

[IgorG]

I think that this doc would be useful for understanding - http://fe.parallels.com/db9ba300c33...ail Services Qmail_Postifx [Presentation].pdf
Spamassassin is included through before-local

 

[Ed Greenberg]

I wish that there was a current URL for the document that Igor has posted. DO we know of one?

 

[IgorG]

I wish that there was a current URL for the document that Igor has posted. DO we know of one?

Unfortunately I can't find this document, but I think it is a bit outdated now.

 

[Ed Greenberg]

Hi Igor,

Perhaps you could explain one thing. This is on Plesk 11.5. I installed Spamassassin and unchecked allowing all users to set their own spam settings. The spam threshold is set for 7.

I don't see anything in the logs indicating that messages are being scanned. I also don't see anything in the postfix config indicating that mail is being sent through spamassassin.

How is it supposed to work when installed by Plesk?

Thanks,

Ed G

 

[IgorG]

I suppose that your issue is related to this case - https://kb.plesk.com/en/121690
Try to apply this solution and check that SA works correctly with https://kb.plesk.com/en/3017