Signup EMail Verification

Hello,

In ERPNext, how to customize sign up process.
That is, When a user sign up, suddenly a verification mails goes to the user email id.
I would like to make it manually. that is Admin manually verify the user and send the verification mail to the user.
To restrict the users.

Anyone know this? please help me.

Don’t think this is customizable out of the box at the moment.