Android :: How To Get Access To Accounts Configured In Email Application?

I'd like to get access to the data stored in the default Email app. I'd like to find out what accounts are associated with the App, and for each account, what folders are associated with the account, and for each folder how many emails are in that folder. I need this information on 2.1 and 1.5. I see the AccountManager in 2.1 can give me some of the accounts configured, but in the Email app you can also add accounts which don't show up in the AccountManager. How do you get access to the accounts configured in the Email app. I'd like to be able to programmatically deleted emails in the users folders. Are the emails stored in a content Provider? If so whats the URI.