IMAP4 and POP3 clients cannot access mail (826957)


The information in this article applies to:

  • Microsoft Exchange 2000 Server

SYMPTOMS

Internet Message Access Protocol, Version 4rev1 (IMAP4) and Post Office Protocol version 3 (POP3) clients cannot access mail. You may also notice the following symptoms:
  • Affected users are located in the same storage group.
  • MAPI mail is not affected.
  • Databases that are in the affected storage group are dismounted. When you try to mount the databases, you may receive the following error message:
    Information store is busy
  • When you try to restart the information store, the computer may stop responding (hang).

RESOLUTION

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

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

http://support.microsoft.com/contactus/?ws=support

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 usual 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 hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel. 
 Date         Time     Version        Size        File name
 ------------------------------------------------------------
 19-Sep-2003  04:10      6.0.6512.0     90,112   Eximap4.dll
 19-Sep-2003  04:10      6.0.6512.0     32,768   Expop3.dll
 19-Sep-2003  04:11      6.0.6512.0     32,768   Exproto.dll
 19-Sep-2003  03:23      6.0.6512.0     40,960   Febecfg.dll
 19-Sep-2003  04:10      6.0.6512.0     32,768   Iisif.dll
 19-Sep-2003  04:11      6.0.6512.0    135,168   Iisproto.dll
 19-Sep-2003  04:12      6.0.6512.0     61,440   Imap4be.dll
 19-Sep-2003  03:26      6.0.6512.0    319,488   Imap4evt.dll
 19-Sep-2003  03:25      6.0.6512.0    126,976   Imap4fe.dll
 19-Sep-2003  04:10      6.0.6512.0    126,976   Imap4svc.dll
 19-Sep-2003  04:10      6.0.6512.0     36,864   Pop3be.dll
 19-Sep-2003  03:26      6.0.6512.0    303,104   Pop3evt.dll
 19-Sep-2003  03:25      6.0.6512.0     24,576   Pop3fe.dll
 19-Sep-2003  04:08      6.0.6512.0     73,728   Pop3svc.dll
 19-Sep-2003  03:26      6.0.6512.0    163,840   Protomsg.dll
 11-Jul-2003  23:39        5.3.18.6      6,656   Spmsg.dll
 24-Jun-2003  20:45        5.3.18.5    100,352   Spuninst.exe

WORKAROUND

To work around this issue, restart the computer. However, this is a temporary solution that may last only several hours.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

REFERENCES

For additional information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates


For additional information about other solutions to POP3 or IMAP access problems, click the following article numbers to view the articles in the Microsoft Knowledge Base:

272492 PO272492 and IMAP clients are not authenticated on Exchange Server 2000


233041 XIMS: IMAP client cannot log on using full DNS domain name

Modification Type:MinorLast Reviewed:10/3/2005
Keywords:kbHotfixServer kbQFE kbfix kbQFE kbBug kbExchange2000preSP4fix KB826957 kbAudITPRO
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