Let's say after they opt, I put them in 2 lists.
1 introduction email series (3 emails)
1 engagement email series (45 emails)
I provide links in the emails so they click. What happens if they dont?
Still send the same email with a different title? I thought I do it for 10 times. If they dont open, put them in dead list.
Because moving to the next days email wont make any sense if they havent opened the first one!