Looking into it, doesn’t seem possible with hestia. True?
Is there a way I can do it directly through config?
If you are wondering why, I’m in process of migrating from cpanel (actually spanel which is compatible) and creating a mail account is not a requirement to forward. I prefer this, because it is one less account/pw to manage or is exposed to the internet but allows me to receive mail at firstname.lastname@example.org and send mail from that identity in my mail client.