I configured my postfix server to relay all received mails to smtp.example.com with relayhost
. This server doesn't accept mails from an external source. So only scripts are sending mails.
Is it possible to configure postfix that all mails with a specific mail address in FROM field, like [email protected] (or also the whole domain: domain.net) are send directly by the server to the corresponding mx server for the TO-address, instead of using the specified relay host?
I found one possibility to specify a specific host if a specific mail address is in the TO field, but not the FROM field: How can I configure Postfix to ignore relayhost for some domains? and http://www.postfix.org/transport.5.html
Thanks!!
You didn't look closely enough.
You'll want
sender_dependent_relayhost_maps
or one of the things that override it.