[djbaxter]

Originally Posted by The Rocketeer

I am wanting to set so that until a newly registered user has confirmed their email, they cant not log in.

AdminCP >> Settings >> User Registration Options
Verify Email address in Registration = Yes

If you set this option to 'Yes' new members will not be allowed to post messages until they visit a link that is sent to them in an email when they sign up.

If a user's account is not activated by the user visiting the link, it will remain in the 'Users Awaiting Activation' usergroup.

AdminCP >> Settings >> Usergroup Manager
Edit Users Awaiting Email Confirmation >> Post / Thread Permissions
Set all permissions to "No".

Originally Posted by The Rocketeer

also perhaps a automated prune users who haven't activated their accounts via email confirmation?

Install https://vborg.vbsupport.ru/showthread.php?t=124530 - Un-Activated User Management 3.1

This still works on vB4.x.