I have DNN 3.3.4 running with AD Authentication.  I guess if the users email is in AD it should populate the DNN record.  I have user accounts automatically registered during their first logon.
The problem is that there is no email registered and every time a new user logs an account is created with no email.
This causes an error when you (admin) try to access the user accounts tool.  Error: User accounts is unavailable.

I need a fix or workaround really bad before I can turn this install over to another admin.
Can someone please provide some code for me to use so that I can do 1 of 2 things.
1) Add the userid registered with the mail domain used in the portal setup and enter this in the DB automatically during a new registration    "or"
2) Remove the requirement for an email address for the User management tool to work with out errors.

Thank you.