Attempting to enhance my postfix header signature, I've run these commands on my Ubuntu server:
sudo postmap header_checks
sudo postconf -e 'smtp_header_checks = regexp:/etc/postfix/header_checks'with parameters on the header_checks file, but since then my spf doesn't work!
I want to undo these commands. How can I do so?
1 Answer
To undo these configuration changes you should simply remove the line with smtp_header_checks from you /etc/postfix/main.cf file and reload postfix service (service postfix reload).
