XCON: MTA Logs Errors 2124, 2175 on Invalid Incoming X.400 Message

ID: Q235534

The information in this article applies to:

Microsoft Exchange Server, version 5.5

SYMPTOMS

In some cases, a third-party X.400 message transfer agent (MTA) may send an invalid message to Exchange Server. Depending on the amount of corruption, the following events may be written to the Windows NT Server application event log:

Event ID: 200
Description:
X.400 Service Event, severity 14
(MTA XFER-IN(12) Proc 102)
Transfer-In failure, error in received APDU
Syntax server error code 0
Error detected at offset 0
Internal qualifier 0
Node label
PDU dump reference 14

NOTE: Event ID 200 indicates a corrupted field in the X.400 P1 message header. You can use the PDU dump reference given in this event to identify the corrupted message in the Bf0.log log file.

Event ID: 2124
Description:
Internal Operating System Error, severity 14
(DB Server XFER-IN(12) Proc 98)
Object Data file causing I/O error
Object id 06000091
Operating system error 131
File operation READ
File offset -2133778432
Filename
Referenced object 00000000 (00000000 => N/A)
Referenced object error 0

Event ID: 2175
Description:
Internal Processing Error, severity 14
(DB Server XFER-IN(12) Proc 72)
Error getting length of attribute
Called from MTA Proc 28492
Database error code ODXOBJEC - I/O Error on object file
Object at fault 06000091
Attribute identifier 71
Value number 2
Referenced object 00000000 (00000000 => N/A)
Referenced object error 0

After this, the Exchange Server MTA may run at a very high CPU time for a long time and occasionally it may not be possible to stop the Exchange Server MTA.

RESOLUTION

To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, please see the following article in the Microsoft Knowledge Base:

Q191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

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

Component: Message Transfer Agent (MTA)

File name	Version
Dbserver.sch	N/A
Dcprods.cat	N/A
Ems_rid.dll	5.5.2641.0
Emsmta.exe	5.5.2641.0
Info4log.cfg	N/A
Infoblog.cfg	N/A
Infodlog.cfg	N/A
Infollog.cfg	N/A
Infoplog.cfg	N/A
Infotlog.cfg	N/A
Mtacheck.exe	5.5.2641.0
Mtamsg.dll	5.5.2641.0
P2.xv2	N/A
X400om.dll	5.5.2641.0
X400omv1.dll	5.5.2641.0

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 3.

Additional query words: hang stop kill

Keywords : exc55 EXC55SP3Fix
Version : winnt:5.5
Platform : winnt
Issue type : kbbug