Article ID: 972357 - Last Review: November 19, 2009 - Revision: 1.2

You cannot view a clear-signed e-mail message in Exchange Server 2007 SP2 when you open the message by using a non-MAPI client

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SYMPTOMS

Consider the following scenario:
  • In a Microsoft Exchange Server 2007 Service Pack 2 (SP2) environment, you configure a transport rule for all e-mail messages that are sent to recipients who are outside an organization.
  • You set the transport rule by selecting append disclaimer text using font, size, color, with separator and fallback to action if unable to apply in the New Transport Rule window.
  • You send a clear-signed e-mail message to a recipient who is outside the organization.
  • The recipient opens the e-mail message by using a non-MAPI client.
In this scenario, the recipient cannot view the content of the e-mail message. Instead, the recipient receives the e-mail message together with a "Winmail.dat" attachment.
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RESOLUTION

To resolve this problem, install the following update rollup:
971534  (http://support.microsoft.com/kb/971534/ ) Description of Update Rollup 1 for Exchange Server 2007 Service Pack 2
After you apply this hotfix, run the following command in Exchange Management Shell:
set-transportconfig -ConvertdisclaimerToEML: $true
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MORE INFORMATION

For more information about clear-signed e-mail messages, visit the following Microsoft Web site:
http://technet.microsoft.com/en-us/library/aa995749(EXCHG.65).aspx (http://technet.microsoft.com/en-us/library/aa995749(EXCHG.65).aspx)
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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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APPLIES TO
  • Microsoft Exchange Server 2007 Service Pack 2, when used with:
    • Microsoft Exchange Server 2007 Standard Edition
    • Microsoft Exchange Server 2007 Enterprise Edition
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Keywords: 
kbexpertiseinter kbfix kbhotfixrollup kbqfe KB972357
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