On Wed, Feb 2, 2011 at 2:33 PM, Stan Hoeppner <s...@hardwarefreak.com> wrote: > In the mean time, maybe give this a go. 1600+ expressions matching rDNS > patterns of many millions of broadband IPs worldwide that shouldn't be sending > direct SMTP. Catches quite a bit that PBL/CBL/SORBS-DYNA/etc don't and with > less delay, reduced load on dnsbl servers and your own network. Potential FPs > will be SOHO and "Linux weenie" MTAs on consumer IPs. Usage instructions are > comments at the top of the file. Insert the restriction above/before any > greylisting daemons in main.cf, obviously. Some on this list and many on the > Dovecot list can testify to its effectiveness. > > http://www.hardwarefreak.com/fqrdns.pcre
I can attest to the awesomeness of Stan's pcre file. I run it on all 5 of our Postfix servers, and it catches a LOT of stuff. From my logs, what it seems to do best is block zombie mailers on dynamic IPs. And I updated to your latest version today, Stan. Thanks :) SteveJ
