Documentation:Email Forwarding

=Email Forwarding= Email can be forwarded from your UGCS account to another address. To set this up, log in and run the mail_forward command. This interactive program will let you enter an email address, and also let you choose if you want to keep copies of forwarded mail on UGCS. You can run "mail_forward -p" to see what your current settings are.

Details
Mail forwarding is controlled by two ldap settings, mailForwardingAddress and deliveryMode. mailForwardingAddress should be a valid email address to forward mail to. deliveryMode can be "normal", where copies of forwarded mail are kept on UGCS, or "forwardOnly", where forwarded copies are not kept on UGCS.