Voting starts in March for the Drupal Association Board election.
I quite like this module and make heavy use of it on my sites. At the moment, it re-runs a complete verification check upon each interaction. I have it on my registration page, profile edit/save page, and elsewhere. Given the expensive nature of contacting remote SMTP servers and the delay, I'd like to cache valid checks for a period of time.
I'll roll this up and submit a patch.