Fresh setup of mailinabox with GoDaddy Domains

[gcode]

This is something that I need to configure as well.

Access Mailbox From A Subdomain

I am not sure if this is possible. But I think that would be great, if I can access my mailbox by typing: mail.domain.com which leads to box.domain.com/mail Especially for my familiy would that be a great feature, they are all not that techie and I want it to be as easy as possible for them to acces their email accounts. Actually that should just be some lines in the nginx config isn’t it? Cause as far as I know, that redirect is not doable with DNS. Am I wrong?

but I cannot even get the basic setup working.