Michael J. Hartwick wrote:
I have never understood how posting the "warning" at the bottom of the email after you have already given up the "protected" information could possiblybe considered enforceable.
It might be useful to look at what some people in the legal business say about these disclaimers:
http://arborlaw.biz/blog/2007/07/19/legal-issues-in-email-disclaimers/