Microsoft KB Archive/239082

= XIMS: IMAP4 Client Hangs Attempting to Append Message Using SSL =

Article ID: 239082

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q239082





SYMPTOMS
You may experience either of the following symptoms:
 * When an Internet Mail Access Protocol version 4 (IMAP4) client attempts to send a message to an Exchange Server computer using the APPEND command and Secure Sockets Layer (SSL) authentication, the client may stop responding (hang). This problem is known to occur with Netscape Messenger version 4.5, but it may also occur with other clients.
 * After an IMAP4 client connects to an Exchange Server computer, the server may end the connection unexpectedly, or may not end the connection in situations where it should.



CAUSE
These problems can occur for the following reasons:
 * If the server obtains the end of the message and a carriage return/line feed (CR/LF) during a single read, the CR/LF may be ignored, and therefore it is not decrypted. This causes the client to stop responding.
 * The server may not properly increment or decrement the counters associated with the receive chain length.



RESOLUTION
To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

The English version of this fix should have the following file attributes or later:

Component: Information Store



STATUS
Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 3.



MORE INFORMATION
The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Keywords: kbhotfixserver kbqfe kbbug kbfix KB239082

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