Hi, i'm using postfix in our small company successfully for many years. But now a problem arised and I was not able to solve it myself or with help from the docs.
We are using sender_bcc_maps, because we want any mail that is sent from one of our employees to be copied to a central mail account. Since a few month our mail provider delivers us mails that are addressed to one of our employees, where the return-path header ist set to the mail address of the receiving employee. The mail is now copied to our central outgoing account. We don't want that. How does the sender_bcc_maps mechanism exactly works? Does it react on mail body header fields like return-path? Is it in detailed documented somewhere? Can we prevent sender_bcc_maps from reacting on the return-path field? If not, how can our problem be solved? Should we use some kind of filter for incoming mails that removes the return-path? Thanks in advance for any help template
