503 5.5.1 Incorrect command sequence
Posted on 2006-10-27
Our Outlook Clients are getting quite a few of the error message below in the last couple of days. When we open the Undelivered report, there is a "Send Again" button that seems to know that there was a problem that can be corrected. If we "Send Again" the message appears to get delivered successfully. We are using Exch 5.5 and I don't see any error messages on the server yet.
Does anyone know what I can check on the server to get to the source of this issue?
Thanks if you can help. I'm still searching for the answer.
Your message did not reach some or all of the intended recipients.
Subject: This email did not get delivered the first time
Sent: 10/27/2006 12:58 PM
The following recipient(s) could not be reached:
email@example.com on 10/27/2006 12:59 PM
Unable to deliver the message due to a communications failure
The MTS-ID of the original message is: c=US;a= ;p=MYOrganization;l=MyServer-061027195738Z-1572
MSEXCH:IMS:MYOrganization:MySite:MyServer 3503 (000B09AA) 503 5.5.1 Incorrect command sequence