Applies to: Exchange Server 2007 SP1, Exchange Server 2007
Topic Last Modified: 2007-09-25

The topics in this section help you diagnose and resolve problems that you may have with message queues in Microsoft Exchange Server 2007. The following topics will help you troubleshoot problems with messages stuck in mail queues and other mailflow issues:

• Troubleshooting MSExchangeTransport Service Events
  
  
• Troubleshooting Outbound Mail That is Put in the Unreachable Queue on the Hub Transport Server
  
  
• Troubleshooting Mail Flow Between Exchange 2003 or Exchange 2000 Servers and an Exchange 2007 Hub Transport Server
  
  
• Messages Queue on an Edge Transport Server with 500 5.1.1 Unrecognized Command Error
  
  
• Troubleshooting Mail Queues That Are Increasing on Edge Transport Servers
  
  
• Troubleshooting Edge Transport Server Queues That Contain Mail Destined to a Hub Transport Server
  
  
• Event Similar to Event ID 9514 May Be Logged in the Application Log
  
  

To ensure that you are reading the most up-to-date information and to find additional Exchange Server 2007 documentation, visit the Exchange Server TechCenter.

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