As of right now, if you schedule an email to go to a list of people (a reminder for everyone who has signed up for an event, a Lent devotion for everyone who has signed up), the email will only send to those on the list at the time of the scheduling (a time-stamped version of the list rather than a live list). If anyone is added to the list (if anyone new signs up for an event or any new family joins the church) between when you schedule the email and when it is sent, the email won't be sent to them even if you update the list of people you'd like to receive the email. You have to unschedule, refresh the list, and reschedule each email. solution would be to allow emails to be sent to live lists OR to static lists.