Ginbert
35 pts. | Sep 17 2009 8:37PM GMT
Here is the NDR info:
Subject: Undeliverable: Delivery Status Notification (Failure)
Your message did not reach some or all of the intended recipients.
Subject: Dinner-Garfield
The following recipient(s) cannot be reached:
<a href="mailto:123@123456789.com" title="mailto:123@123456789.com">123 at 123456789.com</a> on 9/16/2009 8:18 AM
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<mail.123.com #4.4.7>
Technochic
40210 pts. | Sep 29 2009 7:21PM GMT
Do you use a third party email filtering vendor such as Message Labs? Are you filtering outgoing mail? Are the NDR’s from just organizations which use Exchange or is it not specific to Exchange organizations? Is it true for ALL external emails or just some?
Ginbert
35 pts. | Sep 29 2009 8:16PM GMT
We do have a third party email gateway which is AT&T our ISP, they scan email coming in only. We do not filter outgoing email. I do not know if the outside organizations use Exchange or not, I had thought of that too. The original calendar request goes out fine to these organizations, its just the changed calendar request that receives the NDR. It does not happen for all outgoing calendar changes at least not to ALL organizations. I believe it does happen to the same organizations consistantly.
thanks for the help.
Technochic
40210 pts. | Sep 30 2009 1:37PM GMT
I seem to recall this same issue happening to us and it turned out to be a version mismatch of Exchange. They did not have SP2 installed on their Exchange 2003 version if I remember correctly. This SHOULDN’T cause a problem, but I am very sure this turned out to BE the problem. So see if you can find out from the “problem” organizations if they are running Exchange and what version.
Ginbert
35 pts. | Oct 2 2009 6:01PM GMT
There is a hotfix for this issue.
<a href="http://support.microsoft.com/kb/938650/en-us" title="http://support.microsoft.com/kb/938650/en-us" target="_blank">http://support.microsoft.com/kb/938650/e…</a>
thanks for the help.
Technochic
40210 pts. | Oct 5 2009 5:03PM GMT
Good, you found the issue. I was sure it had something to do with the version, and I remember that patch now that you posted it. Sorry I did not recall it for you.






