Ubuntu 18.04.5 LTSでございます
1 package can be updated.
0 updates are security updates.
$ sudo apt update; sudo apt dist-upgrade -y
:
The following packages will be upgraded:
postfix
:
Installing new version of config file /etc/postfix/makedefs.out ...
Postfix (main.cf) configuration was not changed. If you need to make changes,
edit /etc/postfix/main.cf (and others) as needed. To view Postfix
configuration values, see postconf(1).
After modifying main.cf, be sure to run 'service postfix reload'.
ほむー