smtp address in master.cf not needed for loopback

[jcpunk]

Affected Puppet, Ruby, OS and module versions/distributions

• Puppet: 7
• Ruby: 2.7
• Distribution: Fedora
• Module version: 2.0.0

How to reproduce (e.g Puppet code you use)

What are you seeing

127.0.0.1:smtp      inet  n       -       n       -       -       smtpd

What behaviour did you expect instead

Current best practices for loopback are to use the the inet_interfaces option instead.

https://www.postfix.org/postconf.5.html#inet_interfaces
https://www.postfix.org/master.5.html

Output log

Any additional information you'd like to impart