On November 21, 2018 10:01:41 PM UTC, Ralph Seichter
<m16+post...@monksofcool.net> wrote:
>* Matt Zagrabelny:
>
>> Where is the ".localdomain" coming from?
>
>It might be read from a file, or it might be set at compile time? The
>person packaging Postfix for Debian should know. In any case, the Wiki
>article https://wiki.debian.org/Postfix states that you should set the
>'myhostname' and 'mydomain' parameters explicitly.
This is Debian specific:
+# Debian GNU/Linux specific: Specifying a file name will cause the
+# first line of that file to be used as the name. The Debian default
+# is /etc/mailname.
+# +#myorigin = /etc/mailname
It's been that way for at least 18 years (well before I was involved in
maintaining Postfix in Debian).
Scott K
