How to add header subject in postfix
If you want to add subject in the postfix log files, add the following in main.cf file at the bottom. vi /etc/postfix/main.cf header_checks = regexp:/etc/postfix/header_checkssmtp_header_checks = regexp:/etc/postfix/header_checks And add the lines below in /etc/postfix/header_checks files, create the file if it’s not already there. /^subject:/ WARN/^X-PHP-Originating-Script:/ WARN Now restart postfix More