You have upgraded a Microsoft Exchange Server 5.5 Service Pack 3 (SP3) computer to Microsoft Exchange 2000 Server. This server has a site connector, and an Internet Mail Service, both of which appear to have been updated successfully. Although the inbound SMTP mail flow is not affected, no one can send outbound SMTP mail, and the following behaviors occur:
- After a period of time passes, of up to two hours or more, all messages return a Non-Delivery Report (NDR), similar to the following one:
From: System Administrator
Sent: Thursday, September 28, 2000 10:18 AM
To: bogus.user@Microsoft.com
Subject: Undeliverable: Howdy
Your message did not reach some or all of the intended recipients.
Subject: Howdy
Sent: 9/28/2000 8:13 AM
The following recipient(s) could not be reached:
bogus.user@Microsoft.com on 9/28/2000 10:18 AM
A configuration error in the e-mail system caused the message to bounce between two servers or to be forwarded between two recipients. Contact your administrator.
(ServerName.DomainName.com #4.4.6)
- If message tracking is enabled, the message appears to be bouncing between all of the servers in the organization that have an IMS (where IMS is the Exchange 2000 SMTP connector in this upgrade scenario). It does not appear that the message makes any effort to route through an SMTP connector.
- There is nothing unusual about the SMTP connector's setup. Even if you delete one of the connectors, and then create a new one, the problem still exists.