Faced with discovery and documenting “hundreds” of potential IP’s in the relay lists spread across 14 e2003 servers, I went looking for a more programmatic methodology.
Found this: http://support.microsoft.com/kb/935635
While the output is a little clunky, it works way better than me writing them down manually, or screen shots. The reference KB would have you do this from an Exchange server. I am using a domain workstation with good results. With a little excel work, I will be able to combine all this into one PS script to create receive connectors in E2010.
This is probably old info to some of you. YMMV.