I have created an event, which is a month out. I want to schedule an email for a week before the event, that will email all of the people who have signed up. But there are still 3 weeks to go for people to sign up. Right now I can't schedule that email, b/c it will only include the specific people who have signed up.

I want to be able to say, "In 3 weeks, email ALL of the people who have signed up, no matter who they are, not JUST the 2 people who've signed up right now." This seems to be the point of scheduling an email, no? I don't see a way of doing that now. Any help or insight would be appreciated. Thanks!