[CentOS] dealing with spoofing

[Kenneth Porter]

On Thursday, September 01, 2011 12:43 PM -0700 Scott Silva 
<ssilva at sgvwater.com> wrote:

> I get TONS of spam with legitimate DKIM signatures...

DKIM and SPF do not stop you from getting spam. Their purpose is to keep 
you from getting joe-jobbed, by declaring to the world which mail really 
came from you. It protects email sources, not destinations.

So you're getting "honest" spam that tells you that it really came from 
where it claims to have come from.