Bob Proulx wrote:
If you can ensure that mail on your network is not forged....
We use postfix , procmail and spamassassin.
I wonder if a header could be added to a mail from postfix when this part of /etc/postfix/main.cf sees a mail as from local?
smtpd_recipient_restrictions = permit_mynetworks,
The new header could be checked in procmailrc..