Anything win the works for email notifications to users, when there is activity from their friends, etc.

Hello lukesdyer,I've the same problem like you,so you're not alone!. I've tested in "Byethost" and itsn't work.
I've tested in other server too,but I've the same problem.

Ah! My "phpmail" is enable,so I don't know what is happening.

Cheers!