[Dovecot] address of dovecot server

[Seb]

Hi,

How can I find out what the address of my dovecot server is?  The server is 
working fine in my Debian sid machine, and clients can check it using the 
intranet name of the server machine.  However, I'm not sure what address to 
provide in clients outside my home network so they can access the server.  Is 
it simply the standard convention of 'machine.domain.com' address of the 
server?  Thanks for any help.

Cheers,

-- 
Seb