I'll cut to the chase...I have a cable modem isp, I have an exchange
server running for testing stuff...sort of my sandbox if you would...I
don't plan on running this setup for business purposes or anything
else. I had dsl and a static ip and everything was working fine.

Now I have cable modem and have signed up to no-ip.org to gather some
sort or static ip resemblance. I have a domain example.com and have a
cname of mail....mx record host is @ and both point to example.no-
ip.org

Srv record is written as _smtp._tcp.example.com *priority weight* ....
the port is 9925

I can connect via telnet but not the traditional way....ideas/
suggestions?