Disable MAPI clients warning in Exchange Best Practice Analyzer

rkkhandelwal54 used Ask the Experts™
The Best Practice Analyzer of Exchange gives the following error in SBS 2008:
    Disable MAPI clients warning:
    Some versions of MAPI clients are blocked on server SERVER.server.local. Verify that version '6.x.x.x' and version '8.x.x.x' clients are not blocked as the Microsoft Exchange System Attendant process uses these version identifiers for performing server functions. Current MAPI blocking setting: 0.0.0-5.3164.0.

I shall appreciate if some link for resolving this problem is provided.

Thanking you in advance.
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Site Reliability Engineer
Most Valuable Expert 2011

That warning message is perfectly normal for the default out-of-box configuration of an SBS Server. By default, Exchange 2007 on SBS 2008 is configured to block any Outlook clients with versions 0.0.0 to 5.3164.0.
Since the default blocking (and that listed in your error) is not for Outlook 6.x or 8.x, you can safely ignore that message.

Find out more at http://technet.microsoft.com/en-us/library/aa996610.aspx and http://technet.microsoft.com/en-us/library/aa996848.aspx.



Thanks for the information.

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