Hi again. Firstly, thanks for being so helpful with my last problem. Once again I have read every post that relates to this and can't find a straight answer We have finally migrated all of our sites to ISPConfig now, yay! One of our customers wants to configure his mx records as so: Code: MX 10 [ISPCONFIG] MX 20 [IP OF ONSITE ADSL LINK] Then configure ispconfig to (viruscheck &) relay all mail to the [IP OF ONSITE ADSL LINK] What would the best way to do this be? I have read about procmail recipies, postfix relay configs, and things related to ISPConfig settings. The more I read, the more I get confused, so any pointers would be hugely appreciated. W.