You are currently offline, waiting for your internet to reconnect

XFOR: Embedded Messages not Handled by MS Mail Connector

This article was previously published under Q157420
This article has been archived. It is offered "as is" and will no longer be updated.
If a message that has an embedded MAPI attachment is forwarded or sentdirectly to a Microsoft Mail recipient by means of the Microsoft MailConnector, the attachment will not be visible to the MS Mail user. The usermay see text that resembles the following:
[[ MAPI 1.0 embedded message : 4663 In winmail.dat ]]
or possibly just the <Attachmentname.extension>:


It is possible to convert the embedded message to text format so it will bevisible by a Microsoft Mail client. Note that this will not occur with anyMicrosoft Exchange client accessing an Microsoft Mail postoffice, and thefollowing registry value will not be required.

WARNING: Using Registry Editor incorrectly can cause serious problems thatmay require you to reinstall Windows 95. Microsoft cannot guarantee thatproblems resulting from the incorrect use of Registry Editor can be solved.Use Registry Editor at your own risk.
  1. On the Microsoft Exchange Server, start Regedt32.exe.
  2. Under the HKEY_LOCAL_MACHINE subtree, go to the following subkey:
  3. On the Edit menu, click Add Value.
  4. As the Value Name, type:
          Non-MAPI Embedded Messages						
  5. Select REG_DWORD as the Data Type.
  6. Click OK.
  7. Type 1 (the numeral one) in the Data field, and make sure you click Hex in the Radix field.
  8. Click OK.
  9. Stop and restart the Microsoft Mail Connector Interchange service.
This registry modification will allow MAPI embedded messages to betransmitted to the Microsoft Mail system in text format.
PMDF attach attachments disappear forward missing SFS

Article ID: 157420 - Last Review: 10/26/2013 15:45:00 - Revision: 4.0

Microsoft Exchange Server 4.0 Standard Edition, Microsoft Exchange Server 5.0 Standard Edition, Microsoft Exchange Server 5.5 Standard Edition

  • kbnosurvey kbarchive kbprb kbusage KB157420