Change hostname under "Common Account Settings" in mail

[sahsanu]

Hestia uses mail.domain for the hostname when adding mail domains, there is no way to change it… well, of course there is, but you will have to modify php templates used by Hestia and those changes will be overriden on every update.

These are the templates:

/usr/local/hestia/web/templates/pages/edit_mail_acc.php
/usr/local/hestia/web/templates/pages/add_mail_acc.php

I suppose you also would like to change the mail template with the text used to inform users about their mail credentials. If that is the case, take a look to this post:

Mail template translate

Won’t be needed have support for a better method… Create a in: /usr/local/hestia/data/templates/email/ With the same name as: In your case: Copy over the template and make any changes if you want and save them If you want to translate to a different language add a file called: email_credentials.isocode.html

But again, keep in mind that if you modify it, you are not using Hestia the way it is designed to be used and bad things could happen. Also, be sure to configure Exim and Dovecot to work with that shared hostname.