Same situation as some time ago:
A user on one of my domains, hosted on my server enables the autoresponder function within http://mydomain.tld:81/mailuser
The autoresponderfunction itself works as it should as it performs an automatic reply and the user receives the email which has been sent its emailaddress. So, all works great.
However, when an email has been sent from an emailaddress, which is not on my server, the sender of that email receives an error from its ISP, like:
Domain name required for sender address username
(in reply to MAIL FROM command)
This means that I miss the @domain.tld (the right part within firstname.lastname@example.org
) when the automatic reply has been sent.
So I’ve checked the content of the following files:
127.0.0.1 localhost.localdomain localhost
188.8.131.52 host.mydomain.tld host
Within my /etc/postfix/main.cf I have the lines:
myhostname = host.domain.tld
mydestination = /etc/postfix/local-host-names
virtual_maps = hash:/etc/postfix/virtusertable
myorigin = /etc/mailname
Within /etc/mailname I have the lines:
The output of hostname is:
And the output of hostname –f is:
I can not find any mistakes within my configuration, can anyone help me to find out, what I miss?