Gerda - I'm sorry you are continually being attacked by your H. I know that feeling when you see an e-mail in the inbox. While my H doesn't have ramblings of a crazy person, he is starting to show more anger and panic.
Have you considered just hitting the delete button and trash permanently any e-mails that come in like that? Why read them? I'm not sure enlisting an outsider is the answer. To what end? Those ramblings really don't require a response, do they?
Anyway, my two cents worth. I've been out of the loop here for about a week as my stich is cranking up. I check in from time to time though, and you are in my prayers.