On Sat, 9 Jan 2010, James Hess wrote:
Spam filter your inbox on /CONFIDENTIALITY NOTICE.*intended recipient.*destroy.*copies/si and be done with it. The individual sender normally has no control over the matter, so their only two choices are: (a) Post with the notice, or (b) Don't post at all.
senders who don't have control over the matter shouldn't be using such accounts to subscribe to public mailing lists like nanog.
-Dan
