New member email - send on activation instead of initiation?

[makaiguy]

Currently on my system, the new member notification email is sent the instant the user submits the initial registration information. Since we use email authentication on our board, I really don't want to receive these until the user has activated his registration.

Is there any way to alter this so it is sent when the registration is activated instead of when it is initiated?

Edit: I'm talking about the email sent to a chosen email address to notify that a new user has registered, NOT an email sent to the new registrant.