On Mon, Nov 13, 2006 at 09:55:28 -0500, Patrick Doyle <wpdster@xxxxxxxxx> wrote: > > Anyway I have a Linux box parked on the inside of a firewall which, > for whatever reason, won't let the box connect to the company's mail > server via its MX record IP address. I can, however, connect to the > mail server using its internal IP address. (Verified by telnet > a.b.c.d 25). MX records point to A records, not to IP addresses. If your MX record has an IP address in it, it is set up incorrectly.