Beta tester onboarding: email verification, access code and a board card

The scenario verifies the applicant's email, filters out throwaway addresses, issues a personal access code with a pass, emails it and creates the tester's card.

• Throwaway and dead emails are filtered at the door
• Every tester gets their own access code
• The pass email goes out automatically, without you
• The beta roster maintains itself, in Trello

WebhookGmailTrello