Redirect mail to another mailserver

[peman]

Yes thank you, this is what i want but do i need to restart anything cause i still got the same error message "550 5.1.1 <support@kalle.com>: Recipient address rejected: User unknown in virtual mailbox table"

I tried to mail support@kalle.com from another domain that is on the same server as kalle.com and it gives the that message. also the log files says the same, unkown user.

I change the mx to point to our other mailserver in both files and i have disable mail in the GUI of ispCP.