All my boxes have been checked on this page you screen shot. I do get emails but old ones. The first box on your screen shot is unchecked for updates and news and should be checked by default so if admin ever decides to broadcast a msg to all members it will at least show up as an alert if email notifications don't work. I remember being in limbo for awhile before realizing we we're going through platform changes in Sept 2017 but wasn't notified before the chaos.
Kurt,
Your delayed email is one that I just can't figure out.. it would be an interesting test to change your email to say a gmail address and see if it behaved in the same way. We could at least then ascertain that it is your email service provider. If it still had a problem, then we would know with some certainty that it's something other than the email service provider.
I use gmail for SMF and I get notifications within mere seconds.. this is why I suggested a gmail account.
If you want to run a test like that, let me know and I'd be happy to help on my end get that changed in the SMF system.