XFOR: Free and Busy Request by Means of Exchange Calendar Connector May Crash NetWare Server (201531)

SUMMARY

If you send a free and busy request to a nonexistent Novell GroupWise domain or nonexistant post office through the Novell API Gateway, the Novell NetWare server may stop responding (crash). This is caused by a bug in GroupWise and its API Gateway in handling non-delivery reports (NDRs).

The Microsoft Exchange Calendar Connector transfers free and busy information between Microsoft Exchange Server version 5.5 and Novell GroupWise mail systems. For more information on this connector, please refer to the Calcon.rtf file, which is located in the Exchsrvr\Connect\Calcon\Doc folder, after you install the connector.

MORE INFORMATION

The GroupWise message transfer agent (MTA) is not handling free and busy NDRs properly. After the GroupWise MTA receives the request by means of the API gateway, the GroupWise MTA responds with a mail-based NDR. The API Gateway picks up the mail NDR and attempts to match it with the original free and busy request. The following error message is displayed:

Message does not contain Orig-Msg-ID property.

The API Gateway goes into an unstable state. The next free and busy request causes the server to crash.

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.