The technique used by most sites is to send a password via email to the address provided by the user. This forces users to enter a valid email address if they want to access the site.
Sent by Joe Goldsmith on 04/30/2003 06:48:32 PM:
Hello. I have a FWX page that uses ASPEMAIL code to send a thank you email to a visitor who registers on my web site. The outgoing email goes through MDaemon. As many may guess, some visitors do not use their correct email address. Is there a way, a quick way, to validate the email address through ASPMAIL or FoxWeb before I add the visitor to the database giving the visitor access to private portions of my web stite. Any help would be appreciated.