No, there is not. Your last option would be to use this form http://www.facebook.com/help/contact/?id=320596411317906

If you cannot remember the email address then you cannot get in.

(Though if you know all the email addresses you own then it's a process of elimination really)

You can reply to private messages originally sent to you via facebook chat/inbox via email, you can also reply to messages you receive that originated in Facebook groups via email.

In my experience, most other facebook posts and notifications that you get via email cannot be replied to via email. I expect Facebook do it this way because they don't get any page views on their site if you are interacting via email, which means they will lose out on ad impressions, so it won't make them any money.