[CentOS] DKIM

Ralph Angenendt ra+centos at br-online.de
Wed Sep 24 21:00:38 UTC 2008


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
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