Hello! I have a problem with mail's headers. I have software for sending newsletters, I used the php function before and I could force the return-path in the php.ini. So, after an update of the software, the php function mail() is not uses, but it's a socket SMTP in php which is used to sending mail. My problem is deal with the bounce mail return, I don't want it's the client which receive this but only the postmaster of postfix for example. I have tried to specifiy the header return-path in the code but it's the from which is affected to my return path. So, Does it possible to affect in postfix the return-path for example? Maybe somebody have an another solution? Thank's! (Sorry for the spelling, i'm french...)
