Disable verification emails on account creation


I have a single site http://clnconsultoria.com/registrate registration page and as far as I remember, if a user sign up there they were redirected to My Account page and that's it, the user has already selected username and password.

For some reason, I'm now noticing that a screen showing the message about an confirmation email being sent is appearing, email that my users don't receive for some reason.

How can I get back to the original functionality. I see your plugin to do this, but that is for a multisite right? And even so, the user has selected their password so he doesn't need it.

Thanks a lot for the help!