If you have an email ending in @hotmail.com, @live.com or @outlook.com (or any other Microsoft-related domain), please consider changing it to another email provider; Microsoft decided to instantly block the server's IP, so emails can't be sent to these addresses.
If you use an @yahoo.com email or any related Yahoo services, they have blocked us also due to "user complaints"
Notifications just started working for me.
Not so much an IJBM, it's just interesting.
Up until today, whenever I got a PM, I wouldn't get a notification next to my username. It'd just be next to my inbox.