A quick note about email notifications on the forum - everyone is by default configured with either Immediate or Weekly Notification.
If you wish to receive more or fewer email notifications, here are the options to choose from: Immediate Notification (an email notification will be sent immediately), Daily Email Digest (a summary of all your notifications sent once a day), Weekly Email Digest (a summary of all your notifications sent once a week). No matter which option you choose, please select the Include Replies checkbox as well.
Here is how to change the notifications for All Forums:
Navigate to Go > Personal Zone > Notifications
Click on Edit on the line item "All Forums"
Select your notification preference and select the corresponding Include Replies option