The EdgeTransport.exe process crashes and then restarts on an Exchange Server 2007 server


In a Microsoft Exchange Server 2007 environment, a user sends an email message that contains a recipient that uses a custom (non-SMTP) address type. This address only contains spaces. In this situation, the EdgeTransport.exe process crashes and then restarts. Additionally, you find the following events in the Application log:


This issue occurs because an exception is generated by the Exchange Server 2007 server when the custom address only contains spaces.


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


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