Q
Problem solve Get help with specific problems with your technologies, process and projects.

Fix Outlook message delivery issues after Exchange 2003 upgrade

After upgrading to Exchange 2003, Outlook messages sent to external recipients get returned as NDRs. Discover tools and advice to troubleshoot this issue.

Q: We have just upgraded to Exchange Server 2003 from Exchange Server 5.5. We use the Exchange server for internal email only and use POP3 accounts for external email. Microsoft Outlook 2000 is our primary client. Exchange Server 5.5 allows us to compose a message and send it to both internal and external recipients. After the upgrade to Exchange Server 2003, Outlook does not allow this anymore. Messages to external recipients get returned as non-delivery reports. How can I adjust the settings in Outlook to allow the same behavior in Exchange Server 2003 as I once had when I was using Exchange Server 5.5?

A: It depends on what the non-delivery report (NDR) says. Most likely, this problem could be a domain name system (DNS) or mail-routing issue. I would consider looking at the Microsoft TechNet article on Microsoft Exchange Analyzers.

Specifically, check out the Exchange Server Troubleshooting Assistant. This Exchange tool executes a set of troubleshooting steps to identify the root cause of performance, mail flow, and database mounting issues.

Dig Deeper on Exchange Server setup and troubleshooting

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

SearchServerVirtualization

SearchCloudComputing

SearchSQLServer

SearchEnterpriseDesktop

SearchVirtualDesktop

Close