I'm trying to prevent the collateral spam that exists when
mailer-daemons tell us that a user/domain we don't host is sending
spam.
I've googled several hours today but obviously I'm missing something
because I can't find an answer.
If any of my assumptions below are incorrect please feel free to correct
me, but hopefully gently.
The problem appears to be that Mailer Daemons send back email to us even
though our server isn't the sender, and the domain isn't on our server.
My understanding is that exim will always accept mail from a Mailer
Daemon, and I believe that what's happening is that mail is accepted by
exim, and then since it's not deliverable on my server, exim attempts
to send it to the valid MX for the domain.
The simple questions are:
What ACL code can I use to refuse mail from a mailer-daemon if the
recipient is not on our server?
and
In which ACL section should I put the code.
Thanks for any help; I'd really like our code to play properly on the
'net.
Jeff
--
Jeff Lasman, Nobaloney Internet Services
P.O. Box 52200, Riverside, CA 92517
Our blists address used on lists is for list email only
voice: +1 951 643-5345, or see:
"
http://www.nobaloney.net/contactus.html"
