Some more simple tips for cutting spam. . .

[mmorse]

Policy Daemon
Postfix Policyd - Zimbra :: Wiki

And seeing how you like RBL's you may want to Monitoring_Logs_for_DNSBL_bounces : Configuring and Monitoring Postfix DNSBL - Zimbra :: Wiki

[dwmtractor]

Great tools/references, Mike. Thanks, I'll probably be implementing some of them PDQ.

Do you know whether installation of either of these daemons would survive a Zimbra upgrade or whether it'd need to be re-configured each time?

[mmorse]

well the package stays
mysql I wouldn't take bets on
and you have that zimbraMtaRestriction not staying fun right? -lol

track this RFE: Bug 8791 - make support for postfix-policyd easier

[dwmtractor]

Originally Posted by mmorse

well the package stays
mysql I wouldn't take bets on
and you have that zimbraMtaRestriction not staying fun right? -lol

track this RFE: Bug 8791 - make support for postfix-policyd easier

Yeah, I just discovered the &^%$ thing had reset again this morning, and I haven't made any changes in the GUI, so bug 8146 isn't the whole problem. Wish I could figure out what was!!

[dwmtractor]

Turns out when I found the Bonded Sender Program a few weeks back I was only scratching the surface. There are several commercial entities (three that I found) who have subscription services for email marketers, and that have convinced SpamAssassin to include them as whitelist providers, plus a fourth non-commercial one.

I'm not interested in a flame war over whether these lists are "good guys" or "bad guys," and in fact I suspect there are legitimate administrators on this forum who would come out in both camps. I do, however, believe you should know what's working for you or against you in your war against spam.

I have therefore updated the spam wiki article to include a section on "Externally-maintained whitelists" in the hopes that it'll help you know your system more fully. In addition to the Bonded Sender Program, I have included Habeas, ISPPP/SuretyMail, and DNSWL.

Happy hunting,

Dan