I'm just wondering how can I set up a subdomain mail.mysite.com to catch all the mail coming to mysite.com. The domain and its subdomain are in different boxes (ISPConfig is handling the subdomain).
My idea was to create in ISPConfig the domain
mail.mysite.com, but then the mail addresses are
user@mail.mysite.com, and I want them
user@mysite.com, any idea where to find more information about this?