Validating incoming email addresses

karlp at karlp at
Sat Jun 25 04:50:43 UTC 2005

How do I go about blocking incoming email based on validating the sender's
email address? I am getting spam email which is from a non-existent email
address on my own domain. A look at the header shows it's not from my
domain. I expected that. But, the From: field is from my domain
(, even down to my server name (
which NEVER sends email, per se, other than internally as in mail
generated by cron jobs.

Too much information, but I hope you get the gist of what I need.



More information about the Redhat-install-list mailing list