Setting the forward on the mail gateway
You can define an address (or several addresses) for mail forwarding by editing your personal data via the web interface to your profile. The forwarding address setting is under the personal information tab.
Note the above mechanism puts in the forward on the main departmental mail gateway server and so is very robust, i.e. if the mail service is running the forwarding will always occur, otherwise mail will wait until the service returns and then be forwarded.
Setting the forward on the mail storage system
You can also setup forwarding on the mail server where the mail is normally delivered. For the Zimbra mail system you do this by logging onto the web interface, clicking on the preferences tab and putting in the forwarding address in the mail settings section. Note by default it will also keep a copy on the mail server unless you tick the box mark 'Don't keep a local copy of messages'.
Email forwarding for expired accounts
When your account expires any mail forwarding configured via the methods above will cease. You can however set an expired account forwarding email address in your user profile. This email forwarding address only comes into action when the account expires and will last for one year from the time the account expires.