Need some ideas here,
We are switching our email system from Postfix to MDaemon. Both servers are setup with the exact same domain, but currently postfix is the live email server.
What I would like to do is to be able to have all email entering the postfix server destined for a local address to be copied to the MDaemon server so that they start receiving their emails on both servers. This way I'd be able to slowly migrate user by user and then just merge their emails from their .pst file to the MDaemon server.
I am trying to avoid just doing a simple one time switch (so I don't have to spend an entire weekend doing this).
I can't use simple mail forwarding because, like I said, both servers are setup with the same domain name. Does anyone have any ideas?