This is what I send out to some who continue to show everyone's eddresses: (and YES! the capital letters mean I'm raising my voice and shouting!!)
""IF YOU "FORWARD" ANY EMAILS, PLEASE DELETE ALL THE FORWARDING HISTORY
WHICH SOMETIMES INCLUDES MY EMAIL E-DDRESS!
ERASING ALL THE HISTORY HELPS PREVENT SPAMMERS FROM COLLECTING E-DDRESSES (including mine!!!!) AND VIRUSES FROM BEING PROPAGATED.
Click and drag over the unwanted addresses (to highlight); then hit the delete key.
If you don't know how to do that, please ask someone who does!
THANK YOU. ""
Maybe that will help? Good luck!