One more response on this.
I just clicked on the Send Email link on your post and sent you an email. I think maybe your login cookie is there but not set correctly. That can happen in some rare cases. You can tell if when you go to post, your username doesn't automatically appear in the Name: box. If that is happening, it means your login cookie exists with your password, but it doesn't have the username in it.
This is fixed by going to the top of any forum page (e.g., go back to the top of this forum), and click on "Login Status". In that window, there is a "Click here to logout". Do so. Then the next time you post, you will enter your Username and password (after you hit the post button) and the login cookie will be rewritten. Then the Send Email links on others posts will start to appear again.