Found out what this was, the masquerade setting on our SMTP server had
been setup incorrectly.
Cheers,
-Chris
Chris Bradford wrote:
HI guys,
I'm trying to configure either Thunderbird or Evolution to connect to
our Exchange 2003 IMAP server. I've been testing the Evolution Exchange
connector, but we're finding it to be VERY unstable, it keeps bombing
out when certain messages are read, and sometimes on first boot, will
not connect to the exchange server at all.
They can both view the folders and emails on the server, so I guess IMAP
is working.
The problem is when I try to send an email outside of our organisation I
get an SMTP 553 5.1.8 error on the Exchange server, stating that the
domain 'cambridge0' cannot be found.
Our AD domain is called CAMBRIDGE.NEWS and our NetBIOS domain name is
cambridge0.
The SMTP server is setup to mask cambridge0 to our external DNS name,
and this is working for all Microsoft clients (surprise surprise)
If I look at the message source, sure enough there is:
<Return-Path: chrisbradford@cambridge0>
What I was wondering was whether anyone has come across this kind of
problem before.
Any help would be greatly appreciated at this stage.
Chris Bradford
Systems Administrator
Cambridge Newspapers
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