Microsoft KB Archive/304510

= XCCC: Cannot Respond to a Meeting Request with an IMAP Client If You Use UPN Logon Format =

Article ID: 304510

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Exchange Server 2000 Service Pack 1
 * Microsoft Exchange 2000 Enterprise Server

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This article was previously published under Q304510





SYMPTOMS
If a client that uses the Internet Message Access Protocol, Version 4rev1 (IMAP4) protocol logs on to an Exchange 2000 Server computer by using a UPN format ( @ .com), the client may not be able to respond to a meeting request that another user sends.



RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Microsoft Exchange 2000 Server service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

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

Component: IMAP4

NOTE: Because of file dependencies, this update requires Microsoft Exchange Server 2000 Service Pack 1.



STATUS
Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server.



MORE INFORMATION
To work around this problem, either log on to the Exchange 2000 server by using a standard logon format ( \ ) or use an alternate mail protocol, such as Post Office Protocol version 3 (POP3).

Keywords: kbbug kbexchange2000presp2fix kbfix kbqfe KB304510

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