You don’t ssh in at ssh.mysite.com. Port 443 is form HTTPS traffic only. SMTP and IMAP traffic will require additional ports exposed that don’t need to go through caddy. Only the web UIs for your email will be exposed on the subdomains via caddy.
Registering a mail domain is done through DNS records too not via caddy.
You don’t ssh in at
ssh.mysite.com. Port 443 is form HTTPS traffic only. SMTP and IMAP traffic will require additional ports exposed that don’t need to go through caddy. Only the web UIs for your email will be exposed on the subdomains via caddy.Registering a mail domain is done through DNS records too not via caddy.