domain mapping : Force User Admin to Subdomain

Hi Guys,

So I'm running a Network site with domain mapping. The plugin works great. I'm able to map to well.

However, when my users access the admin panel, they are able to access it via Now, I ONLY want them to access it via for two reasons:

1. I would like to SSL secure the admin area
2. Some plugins are incompatible when the admin area is and only works when the admin area is accessed via

How can i do this?