[CentOS] postfix and spam, I am impressed

[m.roth at 5-cent.us]

Bob Hoffman wrote:
> I have had the same email address since 1997 (when microsoft stole
> bob.com from me thanks to network solutions...)

I remember reading about you, vaguely.
<snip>
> Now I have set up a centos 6 box using postfix. Today I decided to try
> to add smtpd restrictions. After a lot of reading and testing I 'seem'
> to be doing incredible.
> I wanted to share my current working postfix smtpd restrictions area so
> that others who are interested can start with it.
<snip>
Here's a question: is there any way to inspect an email's headers, and
reject it if the alleged FWDN in the From:" doesn't match the oldest
"Received: "?

       mark