We need to tell our new ISP to setup a PTR so that email outbound from our mail server is not blocked by reverse lookups on the recipient side.
I have the IP for the mail server, but how do I find the correct domain name for this? Where is this located in MS Exchange System Manager? Here's where I'm looking:
Protocols/SMTP/Default SMTP Virtual Server/Properties/Delivery [tab]/Advanced...
In this window I have a fully-qualified valid domain name. Is this what I give the ISP for the PTR?