webhoster hmm, mail. subdomain is often used for emailservers, can you let us configure that? I would prefer https://webmail.(domain)
This subdomain points to the assigned mail server for the website even if it's separate to the web server. It can be used for POP/IMAP/SMTP as well as RoundCube.
I can log a feature request for domainname.com/webmail to redirect to the webmail. I'm aware that some legacy control panels do this. If we implement this, it will be a platform setting so customers have a choice.