I'm new in the e-mailing world.
Zimbra is successfully installed on a machine.
This machine have only private address.
We have e-mail server on ISP host.
Our request are :
We want Zimbra :
manage trafic on our private network,
( already OK )
manage trafic towards and from our ISP,
( OK with external add address, and setup reply-to option )
user name is unique on both of e-mail systems as on external system,
(i haven't idea. i known about masq. domain but i don't see how
this may help me )
How to do it if is it possible?