If someone is already on my email list, do they have to opt-in again to get my lead magnet?

Yes, they do, but it’s not a big deal. If you’re providing valuable content, people don’t mind opting in again. Also, this is a great way to tag who opts in to what so you can segment your list based on topics and/or interests.   

(In case you were wondering: we’ve tried to find a workaround, but there is not an easy way for our existing subscribers not to have to opt-in each time.)