Set virtual server domains to send email (from forms) to external email hosting

Yes, I fully agree with you, after a lot of research I have seen many posts recommending to manually change the postfix configuration.
I can’t exclude that Webmin allows to configure STMP “per domain” but for now I haven’t found anything about it.
I think I won’t look for a postfix equivalent, and I won’t write a custom module. As soon as possible will setup instead Postfix manually as you suggested… : )

Perfect Dibs, I think that “per domains basis” is what i’m searching !!!
I’ll try tomorrow and I’ll let you know …

No problem, no one knows all the computer science.

I chose this configuration for two reasons, 1) less RAM, 2) so as not to reveal the ip of the webserver (if the mail server resides with the webserver, the MX record reveals the webserver ip).
If instead I hide the webserver behind Cloudflare and the mail server is managed externally, the ip of the webserver is masked (a little bit more secure)…

Hi Anahata, welcome in this topic.
Thanks for the advice, unfortunately the nullmailer or dma software are not part of the modules managed by Webmin.
I should therefore setup and manage them separately and it is not very practical …