The one has NOTHING at all to do with the other.? I have everything check in my settings to receive email notifications.
That checklist controls the internal setting here INSIDE of the forums.
All e-mail from the forums is then sent outside to SENDGRID which handles our user lists and allows members to OPT-OUT for any number of different reasons. If you OPT-OUT of any e-mail for any reason EVER, then you opt out of EVERY E-MAIL for ever.
Categories we track include...
You can put yourself into one of those AND your ISP can put your e-mail account into one of those.
But we are required to maintain those "Opt-Out" lists and NOT send anything to anyone that is listed.