xegr...@gmail.com:
> Hi. In a new install of Postfix 3.4.7-0+deb10u1 on Debian buster,
> I would like Postfix to append $myhostname instead of $myorigin
> to local mail with a From header containing just a username, like
> cron or fail2ban emails. This server is listed in mx records for
> example.com. In older Postfix installations (3.1) it seemed that
> only setting the below would be enough for local mail to be addressed
> from, for example, r...@mx.example.com. Wondering what I am missing
> or what to check next.
Postfix 3.3 changes the default From: header format:
Old: From: address (name)
New: From: name <address>
To get the old form (which is non-standard):
/etc/postfix/main.cf:
header_from_format = obsolete
Wietse
