Exchange 2010 Mail Delays

[Dunks]

Hey guys,

I'm currently having a problem with an Exchange 2010 setup, it was working fine for a week or so until mail that was to be delivered to the server bounced back with the following error:

Final-Recipient: rfc822;[email protected]
Action: delayed
Status: 4.4.7
Diagnostic-Code: smtp;400 4.4.7 Message delayed
Will-Retry-Until: Thu, 7 Apr 2011 10:32:42 -0400

I sent a test email from the exchange server and once this had been sent, all of the queued delayed mail then started to arrive.

I can't find anything in the logs which point to a glaringly obvious error.

Any idea guys?

 

[NightShadow]

I assume internal email is working properly? Do you get the same result when sending from any external domains or have you only tested from 1 domain?

 

[elrasho]

Post the message headers for the delayed email