XFOR: Corrupted Message Causes CCMC to Stop Inbound Traffic and Engage 90 Percent of CPU

ID: Q234745

The information in this article applies to:

Microsoft Exchange Server, version 5.5

SYMPTOMS

A corrupted Lotus cc:Mail message (.ccm) file may cause the Microsoft Exchange Connector for Lotus cc:Mail to use up to 90 percent of the CPU and subsequently stop the processing of all inbound mail messages.

CAUSE

The 'Contents:' field is mandatory in a cc:Mail message. If the cc:Mail message is missing this field because of corruption in the body, the cc:Mail Connector loops indefinitely.

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: Microsoft Lotus cc:Mail Connector

File name	Version
Ccmc.exe	2623.0
Ccmsg.dll	2623.0

WORKAROUND

You can remove the corrupted cc:Mail message by stopping the Microsoft Exchange cc:Mail Connector service, and then deleting the stuck message in the Exchsrvr\Ccmcdata\Export folder.

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: ccmail, stuck message, high CPU, 100%

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