Message ID not showing hostname

[JAMRIC]

Hi there,

The problem we are having is that our exchange server is not adding the FQDN after the @ in the message-id field of the header on outgoing mails.

I am wondering where the server pulls the domain name from and what could cause it not to be added?

Any ideas or work arounds would be very helpful.

Thanks,
Ric.

 

[ha100]

Hi Jamric,

I just cracked this same problem. (Feels so good to solve IT-Problems. Doesn't it?)
The problem was that IP Forwarding was enabled on the Exchange server TCP/IP properties (the 'routing' tab). This caused the servername not showing up in the message-ID header. And this again had the effect that some e-mail recipients could not be reached by the mailserver. That was the problem I started out with.
Hope this will help you to.

 

[JAMRIC]

ha100, I don't see why that should affect things, and it certainly wasn't the problem in my case. I managed to solve it by adding the FQDN to the hosts file on my server and rebooting - problem solved!

 

[ha100]

That's what solved the problem for me (for some reason). I came across the same problem today on another server. Tried the same solution. No go. Tried the same solution you used. That did it.