This simple app is for cases where you don't want to require an email address to signup on your website but you do still want to ask for an email address and be able to confirm it for use in optional parts of your website.

A user can have zero or more email addresses linked to them. The user does not have to provide an email address on signup but, if they do, they are emailed with a link they must click on to confirm that the email address is theirs. A confirmation email can be resent at any time.