We currently have a mail server (POP3) in-house (Rocliff-Mailsite); an email originated in our as400 is routed to this server which in turn will relay the msg to the end destination. We're moving to an MSExchange mail server
and I'm trying to implement the same approach with this new server the same way but it doesn't work. I have the IP address of the server but when I try to telnet via port 25 it just do not respond.
What should I be looking for to make this work?