From: Stephen Hoover (no email)
Date: Tue Oct 01 2002 - 10:38:03 EDT
Sometime ago I setup a defense against hotmail, yahoo, aol, msn, etc.
using the smtpd_sender_restrictions maps example - it has worked well
for me. I am now seeing some spam forging my own domain, which I have
whitelisted in Spam Assassin (so spam rules don't apply to internal
users.)
My question is this:
If I add my own domain to the smtpd_sender_restrictions maps, how
expensive is it to have that check ran on every internal email? We run a
REAL small email server, so I know we can afford the hit, but that's not
really what I want to know. I'd like a good estimation of the cost of
that particular extra check on all internal email.
Thanks!
Stephen Hoover
Dallas, Texas
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