I have a follow-up question.
I managed to get the opt-in form to work, but I have noticed, if I provide my name/email address, and then I receive the email confirmation… But I then delete the email (say by mistake).
…If I then try to submit my name/email into the opt-in form on my site a second time, I do not receive the email confirmation the second time.
How do I avoid this situation, so the opt-in form won’t accept my email submission a second time, should a user accidentally delete the email they receive.
Please note – I have “double opt-in” activated.
