I was just asked to look into getting a TLS connection established between my company and another company for the purpose of encrypting the communication between our exchange servers.
I dont really know the protocol behind doing this, so I started doing some research. My company does not have a certificate issued to us by a third party trusted CA, and I imagine that would be something i have to rectify -- what type of certificate exactly am i looking for? Entrust offers quite a range -- is Standard (1 domain) SSL sufficient?
We are running exchange 2007.