Rewrite recipient dependent on sender address

Hi, our developers team would like to send a bunch of test mails using a productive recipients database - which of course is a great idea. In order to prevent real recipients from receiving these test mails, all test mails should be redirected to an internal mailbox, respectively, the recipien

Selective relaying to internal office server

Hi, I've got two Postfix hosts, mail.example.com and office.example.com. mail.example.com is MX for several domains which are set up as virtual alias domains. Now I would like to forward certain mails, dependent on the recipient, to an internal office server, so us...@foo.org should be deliver