Microsoft KB Archive/246434

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Internet messages from Lotus Notes to Exchange Server need address format of SMTP_ADDRESS@DOMAIN

Article ID: 246434

Article Last Modified on 11/5/2007


  • Microsoft Exchange Server 5.5 Service Pack 3

This article was previously published under Q246434


In an environment where Internet mail from Lotus Notes is configured to go to Exchange Server, a message from Lotus Notes using a default Request for Comments (RFC) 822 format (for example: comes across the Exchange Notes Connector as

Because the message does not have the @Exchange information showing that it is destined for the Exchange Server organization, the message is returned to Lotus Notes rather than transferred to the Internet Mail Service for delivery. After the message loops between Exchange Server and Notes three or four times, Notes recognizes that the message is stuck, and generates a non-delivery report (NDR) for the message to the user.


Messages sent from Lotus Notes through Exchange Server to the Internet require an address format of SMTP_address@Exchange so that Exchange Server knows that the message is destined for the Internet Mail Service. For example, the Lotus Notes destination address of needs to be addressed as (where Exchange is the Notes foreign domain name of the Exchange Notes Connector.)


To resolve this problem, obtain the latest service pack for Exchange Server 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack


Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5 Service Pack 3. This problem was first corrected in Exchange Server 5.5 Service Pack 4.


Microsoft continues to update the tools that support interoperability among Lotus Domino R5 and Lotus Domino 6, Microsoft Exchange Server 2003, and Microsoft Windows Server 2003 Active Directory. The updated tools for Lotus Domino replace the following tools that are included with Exchange Server 2003 and with Microsoft Exchange Server 2003 Service Pack 2:

  • Exchange Connector for Lotus Notes
  • Calendar Connector for Lotus Notes
  • Migration Wizard for Lotus Notes

To obtain these tools and to obtain guidance and additional resources, visit the following Microsoft Web site:

These updated tools provide additional functionality and address several issues that customers reported with earlier versions of the tools.

Additional query words: XFOR

Keywords: kbbug kbexchange550presp4fix kbexchange550sp4fix kbfix KB246434