On an Ubuntu 12.04 server with installed postfix: If I send an email from terminal with mail and look at the E-mail header.
From where does postfix generate the from name at this line:
Received: from service.example.com (service.example.com. [40.237.188.111])
I´ve looked at
- /etc/mailname
- /etc/hosts
- /etc/hostname
- /etc/postfix/main.cf