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

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.

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.

To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base: The English version of this fix should have the following file attributes or later:

Component: Microsoft Lotus cc:Mail Connector

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.

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