Microsoft KB Archive/193932

= XFOR: POP or IMAP Errors Accessing Mail Store When Disk Is Full =

Article ID: 193932

Article Last Modified on 9/9/1999

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APPLIES TO


 * Microsoft Commercial Internet System 2.0

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This article was previously published under Q193932



SYMPTOMS
When a Microsoft Commercial Internet System (MCIS) 2.0 POP3 or IMAP4 service accesses a remote mail store that runs out of disk space, the following error may occur when the POP3 or IMAP4 client tries to open the mailbox:

ERR Could not open Inbox for ' '.

You may also see the following errors in the Windows NT event log:

Event ID: 40

Type: Error

Source: POP3SVC

Description:

Virtual Server 1: The inbox  is corrupt and should be repaired.

Event ID: 3025

Type: Error

Source: RDR

Description:

A write-behind operation has failed to the remote server.

The data contains the amount requested to write and the amount actually written.

NOTE: This will only occur in heavy stress situations when the SMTP service is still trying to deliver messages to the full mail store.



CAUSE
The POP3 or IMAP4 service attempts to log on a user to a mail store during a disk full scenario while the SMTP service is delivering mail to the same full disk.



WORKAROUND
To work around this problem, stop the SMTP service to reduce the load on the server hosting the remote mail store. Subsequent POP3 and IMAP logons should be processed successfully.



STATUS
Microsoft has confirmed this to be a problem in Microsoft Internet System version 2.0 Mail.

Keywords: kbbug KB193932

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