I get email from two sources, my own domain which uses a dynamic dns
assignment (through dyndns.org) and from my ISP (dccnet.com). Until
yesterday, when I attempted to upgrade to exim 4.05 (I am currently
using 3.35 as part of Debian woody), everything worked fine (except,
as Nigel can tell you, when spamassassin got out of hand). I had to
re-install 3.35, and tidied up the spamassassin contents of exim.conf,
and ever since, though mail to my domain comes through fine,
everything coming from dccnet.com (via fetchmail) gets bounced. I
have searched through the archives, but nothing seems to deal with
this, nor can I find anything in the FAQ. I'm sure it's a simple
matter, but at the moment I'm too thick to see it.
Here is an example:
Your message has encountered delivery problems to the following
recipient(s):
root@localhost
Delivery failed
Unable to deliver to destination domain
Mail server at localhost [127.0.0.1] has the same MailSite serial
number (32073) as this machine.