Dmitri V. Ivanov put forth on 10/22/2010 11:01 AM: > On Fri, Oct 22, 2010 at 05:58:46AM -0500, Stan Hoeppner wrote: >> It was donated to me, and by default the community, by an anonymous >> poster to the spam-l mailing list, quite some time ago. We were having >> a discussion about blocking dynamic/generic rDNS hosts. Many of us were >> using really coarse regexes that others felt would catch alot of ham >> sources instead of just broadband/dynamic bots. > > Some of my friends prefer way to put dynamic hosts (and hosts which don't > provide real domainname/IP literal with HELO/EHLO) into graylisting. This > way gives some failover to mistakes within list of dynamic hosts and there > is no conflict with large mail systems which sends outbond mail from > different hosts (they moustly have reverse DNS records not matching lists). > > Sorry for offtopic.
I think most of us that use something like this pcre also use greylisting. I use super selective Postgrey, well after all other checks, as a safety net of sorts. -- Stan
