Hi, building a new ISPconfig box and going to trade backup MX services with a friend. He uses subdomains as part of his email address so he can easily kill off emails if he starts getting spam and he also knows where the spam originated from. As an example, lets say he has domain.com and uses [email protected] for his Home Depot emails or [email protected] for his Amazon email. Is there a way to wildcard sub domains in the relay recipients section so I can backup MX for him without having to specify every sub domain? Also is just specifying the main domain be enough in the relay domains and advanced email routing sections? I tried searching the forums but looking for things like *, mx, etc are all to short of terms to search. Thanks!
