Re: Stopping post going to email .
Have you by chance tried going into you General Settings under My Account and opened the drop down menu next to Default Thread Subscription Mode and clicked on Do Not Subscribe?
Under the drop down menu it will say: When you post a new thread, or reply to a topic, you can choose to automatically add that thread to your list of subscribed threads, with the option to receive email notification of new replies to that thread.
I believe that may help stop the emails.