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

ID: Q234745

The information in this article applies to:

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

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific problem, Microsoft recommends that you wait for the next Microsoft Exchange Server version 5.5 service pack that contains this fix.

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 on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp
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


NOTE: If this product was already installed on your computer when you purchased it from the Original Equipment Manufacturer (OEM) and you need this fix, please call the Pay Per Incident number listed on the above Web site. If you contact Microsoft to obtain this fix, and if it is determined that you only require the fix you requested, no fee will be charged. However, if you request additional technical support, and if your no-charge technical support period has expired, or if you are not eligible for standard no-charge technical support, you may be charged a non-refundable fee.

For more information about eligibility for no-charge technical support, see the following article in the Microsoft Knowledge Base:
Q154871 Determining If You Are Eligible for No-Charge Technical Support


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.

Additional query words: ccmail, stuck message, high CPU, 100% 


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

Last Reviewed: July 1, 1999