Emails with negative spam score falling in the Junk folder

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Media
Posts: 3
Joined: Wed May 24, 2017 1:49 pm

Emails with negative spam score falling in the Junk folder

Postby Media » Thu May 17, 2018 8:01 am

Hello everybody.
I'm always trying to improve the spam filtering of my zimbra server.

While investigating in my users accounts, i found one account which has a strange way of working.
Most of the messages placed in the junk folder have scores below the limit of 6.6 and even with negative scores and even some including autolearn=ham in the header.
I don't understand how and why those messages fall in the junk folder. Furthermore it happens only for one account out of 150.

I analyzed the logs, but even though I see the scores, I don't see when the sorting of messages is made between Inbox and Junk.

In fact I would like to know what is the element of zimbra that ultimately places a message in the Junk folder of a mailbox. Is it Amavis, Spamassassin, Postfix ?

Could one of you help me ?


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