Microsoft KB Archive Search

Notice: This website is an unofficial Microsoft Knowledge Base (hereinafter KB) archive and is intended to provide a reliable access to deleted content from Microsoft KB. All KB articles are owned by Microsoft Corporation. Read full disclaimer for more details.

  1. Home
  2. The Exchange IMAP4 service may stop responding on an Exchange Server 2007 Client Access server when users access mailboxes that are hosted on Exchange Server 2003 servers

The Exchange IMAP4 service may stop responding on an Exchange Server 2007 Client Access server when users access mailboxes that are hosted on Exchange Server 2003 servers

View products that this article applies to.

Symptoms

Consider the following scenario:
  • You have a mixed Microsoft Exchange Server 2007 and Microsoft Exchange Server 2003 environment.
  • You have Exchange Server 2007 Service Pack 3 Update Rollup 2, 3, 4 or 5 installed on Exchange Server 2007 servers.�
  • You use an Exchange Server 2007 Client Access server to proxy requests for Exchange Server 2003 mailbox servers.
  • Users try to access the mailboxes that are hosted on the Exchange Server 2003 servers by using Internet Message Access Protocol 4 (IMAP4) clients.
In this scenario, the Microsoft Exchange IMAP4 service on the Exchange Server 2007 Client Access server may stop responding. Additionally, the IMAP4 clients cannot connect to the mailboxes until you restart the Exchange IMAP4 service.

↑ Back to the top

Cause

This issue occurs because of a deadlock when the Client Access server manages and releases the IMAP4 session and the proxy session.


↑ Back to the top

Resolution

To resolve this issue, install the following update rollup:
2608656 Description of Update Rollup 6 for Exchange Server 2007 Service Pack 3

↑ Back to the top

Status

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

↑ Back to the top

Keywords: KB2629790, kbexpertiseinter, kbsurveynew, kbfix, kbqfe

↑ Back to the top

Article Info
Article ID : 2629790
Revision : 1
Created on : 1/25/2012
Published on : 1/25/2012
Exists online : False
Views : 334