I was wondering if it is possible to resrtict Auto-Forward Rules from forwarding Mails to Accounts outside of Groupwise while still being able to Auto-Forward mails to other Groupwise Accounts.

If yes is it possible to override this setting at a User level. What I am trying to achieve is that we can block all Groupwise users from Auto-Forwarding Mails to external E-Mail Accounts. Like most Rules we have a few exception where we need to be able to Auto-Forward Mails from one or two Accounts to External systems. Any help on this Topic would be greatly appreciated