XCON: MTA Stops Delivering from Certain Queues After Event 2187 and a Site Deletion (288166)



The information in this article applies to:

  • Microsoft Exchange Server 5.5 SP4

This article was previously published under Q288166

SYMPTOMS

The Exchange Server 5.5 message transfer agent (MTA) may stop transferring messages over some or all connectors that are accessed by the local MTA.

The MTA generates 2187 events:

An MTA database server error was encountered while attempting to unlock an object which is not locked. Called from MTA. Procedure 155. Object at fault: 08XXXXXX. [DB Server OPERATOR 20 58] (14)

CAUSE

The MTA is experiencing a problem with a gateway delivery thread. The problem is a result of the deletion of resources that are used internally by the MTA after a site is deleted.

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 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: MTA

File nameVersion
Dbserver.sch5.5.2654.59
Dcprods.cat5.5.2654.59
Emsmta.exe5.5.2654.59
Ems_rid.dll5.5.2654.59
Mtacheck.exe5.5.2654.59
Infoplog.cfg5.5.2654.59
Mtamsg.dll5.5.2654.59
Mtaperf.dll5.5.2654.59
P42.tpl5.5.2654.59
P772.tpl5.5.2654.59
P2.xv25.5.2654.59
X400om.dll5.5.2654.59

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

WORKAROUND

To work around the problem, restart the MTA.

STATUS

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

MORE INFORMATION

The problem was only reproduced after multiple sites were deleted.

Modification Type:MinorLast Reviewed:10/6/2005
Keywords:kbHotfixServer kbQFE kbbug kbExchange550preSP5fix kbfix kbQFE KB288166