After trawling logs from users who give you a time and a recipient when they deal with this recipient quiet a lot is a pain…so i asked for the subject of the email only to notice its not there (new to this postfix malarkey) – so quick google and this enables the subject in the logs
Firstly, edit the main.cf file and enable or add the following line:
header_checks = regexp:/etc/postfix/header_checks
Next, create the /etc/postfix/header_checks file if its not already there and add the following line:
/^subject:/ INFOReload/restart Postfix and send a test message.
Postfix reloadThen
Postfix stop && postfix startAll done.