About membership sign up sequence

hi there,

i wanted to know if it is possible to disable the logged in feature in membership. what i mean is when a visitor creates an account the visitors is instantly logged in after the account creation. is there a way to disable this feature so that the user is not logged in automatically? i want to send an email with login details and then they can sign in usin the wp login. most member sites outthere work in this manner. having someone logged in instantly is not a great idea for security reasons. please let me know where and how i can disable this? is there a plug in to do this?

thank you.

marco