Hi All,

I'm puzzled, and hope you all can help - the machine is almost ready, so I'll stop bothering you soon, promise!

So I seem to have set up my bind9 and sendmail software.

% host -a exoco.net
% dig +short -t mx exoco.net @212.13.195.120
% nslookup exoco.net

all work fine.

% telnet exoco.net 587

does too.

Why does

% telnet exoco.net 25

from an external machine not work (it hangs), while it does function at the local? 

What am I missing??