2011-06-21 Initial Post
Exchange Server 2003 SP2
Exchange Server 2010 SP1
I don’t recall specifically reading about this anywhere, but I thought about this last week when we had a request to allow an application server to relay e-mail messages to an external domain. It made sense and I tested it out and it work as expected. Here's what happened:
If you have an application server that needs to send e-mail outside your organization, you can either allow that application server to relay, or you can create a contact entry for the external e-mail address. If the application server only needs to send to a few external addresses, creating contacts for each would be preferred over allowing the application server to relay. (more…)