Preventing new users from having account page active until after email verification
 

I'm using vBulletin 3.8.5 and am fed up with spammers who join my forum just to create an account with spam links on their user account page. I'd like to have email verification set up in such a way that their account won't be visible to users (i.e. http://www.mysite.com/myforum/member.php?u=xxx) until after they have received an email and clicked a link in it. This way I can set up the email to say something like "To complete your registration you must click the link in this email. PLEASE NOTE: if you are setting up an account simply for the purpose of putting spam links on your account page it will be deleted within 24 hours." My hope is that if I can do this then most spammers won't bother completing the registration and I won't have to keep deleting "new users" (spammers) every day.

I'd also like to configure my notification so that I won't get a New User email until AFTER they have completed email registration. This way if someone creates a new account and then sees in the email that there's no point in continuing and doesn't complete it, I won't get bothered with a notification and their account will never be visible to anyone. Is there a way for me to set this up?

I know I can configure the forum so that new users can't post until responding to an email challenge. But I'm getting lots of spammers who don't join to post - they just want to create a user page with spam links.