I believe it's in the privacy settings of your account
INFJ Forum
Milktoast Bandit
Dado
I found under section "Contact details - Messaging preferences" few checkboxes and unchecked them but still I am receiving notification emails... 
Milktoast Bandit
You might have to burn the place down!
Dado
:OOOOO
Milktoast Bandit
Somehow there is a way!