I get emails (all the time!) that end with...
The information in this email is confidential and may be legally privileged. It is intended solely for the addressee. Access to this email by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, distribution or any other action taken in reliance on it, is prohibited and may be unlawful. If you believe that you have received this email in error, please contact the sender. Etc. etc etc etc.
Globally, this legalese must be having a major impact on bandwidth. Truth is, we never have enough bandwidth so adding this to nearly every effing email must come at a hell of a cost worldwide.
Why can't we just add in a hyperlink to a page that gives all this guff? There would not really be a page there; no-one would ever go there.