How to add a (additional) transport map?
we are installing a ums server, and this server needs to get ums mails (mails with voice, fax, sms attached) forwarded from the zimbra mail server.
The ums mails have a sender like email@example.com, firstname.lastname@example.org and email@example.com. Mails for these domains should be routed to the ums server.
AFAIK I need to configure a transport map to do this. According to http://www.zimbra.com/forums/administrators/3928-postfix-transport-maps.html, I should be able to add one.
Since I am rather new to Postfix and Zimbra configuration, and I don't want to break my current configuration:
How can I add the transport map and what files do I need to change so Zimbra won't overwrite the changes at the next boot / update (examples would be great)?
Any help would be appreciated!