[Pkg-exim4-users] multiple domains and reverse dns

graham graham at theseamans.net
Tue Dec 4 09:36:49 UTC 2007


This question may be showing my ignorance about the basic functioning of
mail or dns as much as of exim; if so, and you know a better place to
ask, please point me there. I can't find the answer in the FAQ.

I have a single computer handling several domains each with a real IP
address. This works fine for web sites, and for receiving mail. It also
works for sending mail, except that a reverse dns lookup of the 'from'
ip address does not necessarily match the domain in the reply-to
address, causing my outgoing emails to be rejected as spam by many systems.

How do I get the 'from' ip address of my outgoing mail to match the
domain in the reply-to field?

(I am using IMAP with thunderbird as client and my outgoing smtp server
set as my ISP)

Thanks for any advice


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