Hi there,
I was trying to set up the mail for my domain, but I haven’t been able to do so:
When I login to the roundcube with the credentials, when trying to send the composed email says:
SMTP Error (-1): Connection to server failed.
The main goal was to follow this tutorial, which I did the DNS stuff and opened ports on ufw and hestia as well. Do you have any idea why this is happening?