Event ID: 4999 is logged when the EdgeTransport.exe process crashes intermittently on an Exchange Server 2007 server

Symptoms

The EdgeTransport.exe process crashes intermittently on a Microsoft Exchange Server 2007 server. Additionally, the following event is logged on the server:

Resolution

To resolve this problem, install the following update rollup:
2279665 Description of Update Rollup 1 for Exchange Server 2007 Service Pack 3

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.