Consider the following scenario:
- You use a third-party fax partner server to process incoming fax messages in a Microsoft Exchange Server 2010 Service Pack 1 (SP1) environment.
- There is a relay between the fax partner server and the Exchange Server 2010 SP1 server. For example, you use Forefront Online Protection for Exchange (FOPE) as a relay.
- There is an incoming fax message.