Tue Olesen
When a list (e.g. the house email list) is configured to have double opt-in enabled, new subscribers receive a confirmation email and click to confirm their subscription.
When people are subscribed via a "Subscribe to list" trigger, the double-opt-in email is not sent out, they are just subscribed directly to the list.
It could be useful to have the option of using double opt-in, also for trigger-based list subscriptions.
My use case:
  1. My house list is already using double opt-in for normal sign-ups via a signup form.
  2. A new contact signs up for an event, and checks the consent box (effectively, saying yes to recieving emails from my house list.
  3. The event has a trigger on it that subscribes the contact to my house list (and another trigger, that resubscribe the contact, in case they were unsubscribed).