An IMAP4 client crashes when accessing an Exchange Server 2010 mailbox

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Article ID: 979790 - View products that this article applies to.
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SYMPTOMS

A user access a Microsoft Exchange Server 2010 mailbox by using an Internet Message Access Protocol 4 (IMAP4) client. The IMAP4 client crashes if there are S/MIME messages in the mailbox.

CAUSE

This problem occurs because Exchange Server 2010 returns negative values for message size, which is incompatible with RFC.

RESOLUTION

To resolve this problem, install the following update rollup:
982639 Description of Update Rollup 4 for Exchange Server 2010

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about IMAP4, visit the following website:
General information about IMAP4

Properties

Article ID: 979790 - Last Review: June 18, 2010 - Revision: 2.0
APPLIES TO
  • Microsoft Exchange Server 2010 Enterprise
  • Microsoft Exchange Server 2010 Standard
Keywords: 
kbsurveynew kbexpertiseinter kbqfe kbfix kbhotfixrollup KB979790

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