change sending domain in email system


I have some so called “normal” issues which I would like to change.
Have created a new virtual server with web and email enabled.

But when I am sending the emails from this server they are coming from “this” domain as
it`s the name of this virtual server of course , but is it possible to change these settings if yes how
and where in the Virtualmin these settings can be changed … ?

for example, this virtual server is called: and all emails sent from this
will use the domain: and I will change this to:


I solved this by changing the domain name in the WebMail … and it works…