RobertH wrote: > > Then I said > > "Setup proper SPF records for your domain(s) for one." > > Most properly setup mail servers do some sort of SPF checking nowadays and > use the info at SMTP time or later in something like spamassasssin scoring > etc That's probably the reason why much spam has valid spf records. Get yourself a throwaway domain, so you're getting through the domain check and give that domain a valid spf record which allows all machines in the world to send mail for that domain. Voilà - valid SPF record. That's why I asked which problem SPF is trying to solve. Ralph -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 194 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos/attachments/20080924/5491b5aa/attachment-0005.sig>