Thanks for jumping in and trying to help anyhow. Given the lack of response from DH on all counts (i.e. forum and support ticket) Gmail is starting to look like the only available option.
Option #2 is moving away from this service altogether in favour of something with a more robust email system. We get what we pay for in life, and when we pay peanuts we get things like Squirrelmail and web 1.0 Mailbox control panels with 2% of the features it should have.
Kinda sad for DH to be so sweet and so sad in this respect all at the same time. Email forwarding (i.e. to a blackberry) is an ESSENTIAL service that people need to enable/disable at whim without having to open up a complex panel and carefully eek their way around stuff that could bring down the entire system just to setup a forwarding rule.
I've tried setting up a limited account to allow the individiual users to login to the main panel so they can forward, but sadly they cannot access a single email account without also be able to access the whole domain.
Using 'Account Privledges' in the panel to create a limited access role still presents the basic non-technical email user with a whole world of HELL for their eyes to behold.