In my last email I did share that I tried setting myhostname in the main.cf to
the FQDN that is returned by the above steps and there was no change as part of
my troubleshooting. After this I reloaded the configuration and even restarted
the service and postconf -d myhostname is still wrong.
I am just baffled that /etc/hosts has the fully qualified domain name, the
/usr/bin/hostname -f command gives the output that is FQDN...not a programmer
so no idea how to see what the function that is documented does.
-----Original Message-----
From: owner-postfix-us...@postfix.org <owner-postfix-us...@postfix.org> On
Behalf Of Viktor Dukhovni
Sent: Tuesday, September 27, 2022 1:28 PM
To: postfix-users@postfix.org
Subject: Re: Wrong Domain in Null Client Setup
...
Your mistake is to use "hostname -f". Postfix uses the actual configured
hostname, not some randomly canonicalised version that changes unpredictably.
Either set the system hostname to the desired FQDN, or set "myhostname" in
main.cf.
> Running postconf -d myhostname returns the host.localdomain where the
> host is the correct hostname, but localdomain is just the string
> "localdomain"
You need to configure a fully-qualified hostname, or set myhostname explicitly.
--
Viktor.
