You can redirect your email to another email address by logging in to your email admin panel (http://mail.yourdomain.co.nz/mailadmin). Click on Manage Accounts, and then click on the account to forward from the list. Click on “Responder and Forwarding Options”, then click the “Forwarding On” tickbox and enter the address to forward the mail to in the box.

[Note: Replace any instances of yourdomain.co.nz with your actual domain name]