XML Schema for emails

I have started on an XML Schema to validate XML-based emails. It is
available at http://www.ntnu.no/~engmark/work/xemail/XeMaiL.xsd. The
purpose of the file is to be able to define how an "XeMaiL" must be
constructed, measure compatibility of XeMaiL clients, and making life
tougher for email hackers / crackers.

I hope you'll find it useful.

Yours sincerely,
-- 
Victor Engmark
Quid quid latine dictum sit, altum viditar - What is said in latin,
sounds profound