> Paul, I appreciate what you're saying above. But isn't it likely that if spammers > are going to the trouble to add SPF records that they're also going to the trouble > to retry after a tempfail, and thus defeat greylisting?
I would disagree with this. Spammers don't have to be the authors of spam-sending software. The program authors would care (or not) about retransmitting after a tempfail. The people who obtain and USE the software to send spam will control the DNS domains they set up (BuyMyStuff.com, etc.) will control whether they want SPF records in those domains. _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
