XADM: Mailbox Manager Unable to Notify Users After Cleaning Mailboxes

The Microsoft Exchange Mailbox Cleanup Agent (MBClean) may fail to properly notify users when it has cleaned their mailbox. This behavior can occur if MBClean's own mailbox is over the quota limit specified for the information store. This condition may also cause MBClean to prematurely stop cleaning mailboxes. The following two errors in the event log may indicate this problem:

The MBClean mailbox has exceeded its mailbox size limit, as specified by the information store settings. When MBClean tries to submit a message to notify a user that their mailbox has been cleaned, the information store returns the error 0x4D9, which is ecQuotaExceeded. This error is returned as 0x80004005 (MAPI_E_CALL_FAILED), which is logged in event 721 above.

To correct this behavior, MBClean has been modified to permanently delete any messages in its Inbox folder upon starting the service. Also, MBClean will set the incoming size limit for the mailbox to 0 to prevent any further messages from being delivered. The mailbox is also configured to not use the information store storage limit defaults.

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 Server 5.5 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: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: MBClean


NOTE: Due to file dependencies, this hotfix requires Microsoft Exchange Server version 5.5 Service Pack 4.

Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5.

To determine if the MBClean mailbox is over its size limit:

1. In the Microsoft Exchange Server 5.5. Administrator program, locate the Mailbox Resources object under the Private Information Store object.
2. Add the Storage Limits column to the view. For more information on how to perform this step, please refer to the following article:
   260184� XADM: How to Add Storage Limits Columns for Mailboxes
3. Find the mailbox with the display name "Microsoft Exchange Server Mailbox Manager for ServerName, where ServerName is the name of the server on which MBClean is running.

The Storage Limits column for this mailbox will display "Prohibit Send" or "Mailbox Disabled," depending on the information store storage limits that are configured. If either setting is displayed, MBClean may not correctly send status messages to the users to inform them that their mailbox was cleaned.