Microsoft KB Archive/250926

= XFOR: GroupShield Interferes with POP3/IMAP with SSL Enabled =

Article ID: 250926

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 Q250926



SYMPTOMS
When a user is attempting to download mail from Microsoft Exchange Server by means of POP3 or IMAP with Secure Sockets Layer (SSL) enabled, the user may get the following error message even though the server certificates have been installed properly:

A secure connection to the server could not be established.

Account: 'accountname' Server: 'servername', Protocol: POP3, Port: 995, Secure (SSL): Yes, Error Number: 0x800CCC1A

You may also see the following events logged in the Exchange Server event log:

EventID: 11508

Source: MSExchangePOP3

Description: Accept clients on POP3 interface failed in function HrRegisterProtocol with error 0x2741.

EventID: 1194

Source: MSExchangeIS

Description: Accept client on external interface POP3 failed with error 0x80004005.

EventID: 11506

Source: MSExchange IMAP4

Description: Accept clients on IMAP4 interface failed in function HrRegisterProtocol with error 0x2741.

EventID: 1194

Source: MSExchangeIS

Description: Accept client on external interface IMAP4 failed with error 0x80004005.



CAUSE
This problem can be caused if the Network Associates GroupShield for Microsoft Exchange virus program is running on the server containing the POP3 mailbox.



RESOLUTION
Completely uninstall GroupShield and attempt to connect to Exchange Server using the POP3 client with SSL enabled. After you verify that this is successful, you should be able to re-install GroupShield and have no further problems.



WORKAROUND
Disabling SSL enables the client to download mail if GroupShield cannot be immediately uninstalled and reinstalled.



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: kbprb KB250926

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