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Article ID: 304061 - Last Review: October 24, 2013 - Revision: 1.3

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This article was previously published under Q304061
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In Outlook 2001 for Mac, if you try to connect to a Microsoft Exchange Server whose name begins with a zero (0), you cannot connect and you may receive the following error message:
The specified Microsoft Exchange Server is unavailable or a connection cannot be established.


A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site: (
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:
   Date         Time   Size     File name      
   17-Jul-2001  20:00  103,424  Msrpc4.0.4.sit


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

  • Microsoft Outlook 2001 for Mac
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