My client will start to use a new domain which hosting in another server. In this transition period, they are requesting to forward all the future incoming emails of old domain in Smartermail to the new one. Is there a way for me to forward the whole domain in Smartermail to their new server instead of setting up the forwarding for the user one by one?

 

Basically it's a reverse version of the Domain Alias feature in Smartermail that I'm asking.