email sent automatically from email field in checkout

Hello,

It seems that the email box/field in the checkout page is somehow automatically connected to my mailing programme (mailerlite). I mean the box itself where the email is typed, you don’t even need to purchase the course, as soon as you type the email in that field and go to the next checkout field, the subscriber/client get the double opt-in mail. Then, once the course is bought they get a second double opt-in mail. (the normal one after purchasing a product).

It has nothing to do with the double opt-in, because if I disconnect double opt-in options I also get the user added to subscribers list automatically (without buying the course, just for the sake of typing a valid email in the mail box/field). I just left the double opt-in option ON because I need it and also so that someone else can check if they are getting that mail automatically once they type it. (If I deactivate it, I could only see that the client has been added to the list, but not the client itself, or the ones helping me out).

I’ve deactivated all plugins, leaving exclusively “WooCommerce” and “MailerLite – WooCommerce integration”, and the problem is still there. Emails get direct to All subscribers list as soon as typed in checkout. (After purchasing they get added to the corresponding mailing lists as well, which is normal).

This happened suddenly some weeks ago. I’ve contacted mailerlite support, but no solution yet, so I’m just checking if it has something to do with WordPress plugin.

Thanks a lot

The page I need help with: [log in to see the link]