Electronic mail sent to "foo@bar.com" is automatically retreived by a 
FAX machine, under the definition of Title 47 USC Sec.277 (a) (2) (B).  
Therefore, unsolicited commercial electronic mail sent to this address 
is in violation of Title 47 USC Sec.277 (b) (1) (C).  Violation is 
punishable under Title 47 USC Sec.277 (b) (3) (B), "recover for actual 
monetary loss from such a violation, or to receive $500 in damages for 
each such violation, whichever is greater...".  

Full text of USC 47 Sec.227 is available at 
http://www.law.cornell.edu/uscode/47/227.html.

Chain letters, even if transmitted via the Internet, violate Title 18 
USC Section 1302, the Postal Lottery Statute.  

Full text of Title 18 USC Section 1302 is available at 
http://www.usps.gov/websites/depart/inspect/usc18/lottery.htm.

Violators will be reported to their ISP, to abuse@postoffice.us, and 
to other legal authorities and censure agencies as appropriate.