Question: SPAM Filter for mailman lists in Plesk 12?

[janl]

Hi there,

I am happily running Plesk 11.5; with just one small but annoying persistent problem:

I have Clients with large mailinglistes
- SpamAssassin
- Server-wide greylisting
- DNSBL
is running.

But apparently many of the lists mail adresses have been harvested over the years.
And as there is no easy way to use SA in mailman, I am down to greylisting only for list adresses.

This results in insanely large amounts of SPAM (-> moderation requests) on the client's lists.

Is this behaviour improved in Plesk 12?
Or can probably SIEVE filters help here - are those availabe to mailman? (problably not as they work in Dovecot?)

 

[IgorG]

BTW, in Plesk 12 it is announced that sieve support is provided with Dovecot. <ore details you can find here - https://devblog.plesk.com/2013/11/dovecot-in-plesk-for-linux-11-6/

 

[janl]

That's exactly why I bring this question up: Can SIEVE filters help here?

I think they probably can't, because SIEVE is happening in Dovecot, which is the IMAP Server.
Mailman-mails, if I understand correctly, are routed out before the IMAP Server.

So if SIEVE can't solve the problem, the question stays the same: what can I do against mailinglist-SPAM?