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troubleshooting Question

Exchange 2003 & NDR 4.4.1

Avatar of HTGR77
HTGR77 asked on
SoftwareExchangeEmail Servers
4 Comments1 Solution607 ViewsLast Modified:
We have an Exchange 2003 and IronMail. Up until now everything was fine but from yesterday we received the follow error :

This is a delivery status notification, automatically generated by MTA xxx.xxxxx.gr on Thu, 04 Mar 2010 10:30:01 +0200 Regarding recipient(s) : xxx@ath.forthnet.gr Delivery status : Delayed. Did not receive the expected protocol response. (ath.forthnet.gr).
We have been attempting delivery for 5 times.
Maximum delivery tries attempted. Please contact your administrator to contact the destination domain or resend your message. Delivery failed.

MTA Response :4.4.1
The original message headers are included as attachment.

The above error is not related to any particular domain meaning that we have errors with diffrent domains. Last Friday we had a new patch in IronMail ver. 6.7.2, we think that the problems may have started after the patch but we are not 100% sure.

Finally the SMTP queue in Exchange is empty and the IronMail queue is full.
Avatar of Alan Hardisty
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