Active user account after administration's confirmation
I don't think you need a contrib module for that. You can set " Visitors, but administrator approval is required" under "Who can create accounts" on admin/config/people/accounts. 

As for sending e-mail, create an advanced action at admin/config/system/actions and then set it on admin/structure/trigger/user to be triggered by account creation.

The core Action and Trigger modules are all that are required for that.