Hello all. I'm using postfix since at least 20 years and I could always find a satisfactory solution to my problems.
However I have an now an issue with the filtering of the mail headers, as I want to use the headers_check functionality only for e-mails sent to external/Internet addresses. This without the need of creating a number of roles depending from the internal sender, IP, ecc as I have found as hints by googling today (I do support several IPs, domains, ecc). I have one VM dedicated to Postfix and it seems that the only general solution is to create a new Posfix VM, define this as the relayhost and apply the headers_check in this VM that will be used only for Internet outgoing traffic. Is there any other solution that will not need a new VM? Tnx Marco
