a module designed to require users to re-validate their registered e-mail addresses. for use primarily in the case where we already have a lot of users without valid e-mail addresses in the system.
this module would lock the user's account until they input a valid e-mail address and verify it with the validation key sent to said address.
a companion module should also be written to run as a cron job every month or so, requiring that those who haven't validated their e-mail in 6 months do so.
note: any change to the e-mail address on a user's account should prompt a verification.