XFOR: Message from Client Not Homed on Server Crashes IMC

MORE INFORMATION

If the "Clients can only submit if homed on this server" option is selected on the Connections page of the Internet Mail Service properties, authentication of inbound connections is required. However, you can bypass this by using a per-host setting that allows a host to bypass the authentication. This may be set in the "Accept Connections" dialog on the Connections page.

Mail sent from the exempt host that fails the "homed on this server" check will result in an Non-delivery report (NDR) to the administrator, which will cause a crash because there is no authentication information.

The following event will be logged on the Exchange Server computer:

   Event 4037
   MSExchangeIMC
   Error
   An exception has occurred which was handled internally by the Internet
   Mail Service. This may have resulted in a message not being delivered.
   Code: 0xc0000005 Flags: 0x00000000 Address: 0x00462f42