technical issue External PM notifications don't work

[ExplosionMare 27,603]

I have the forums saved as a home screen bookmark on my phone and I've been using the "pop up" notification feature so I get PM notifications similar to how you'd get text messages. That stopped working so I switched it to email. It worked once and then after that, I haven't gotten anymore emails. I've gotten PMs throughout the day so I'm definitely getting less external notifications than I should.

Is there a way to fix this? I tried turning pop up notifications on and off and that didn't do anything.