On Fri, Jan 6, 2012 at 7:26 PM, Robert P. J. Day <rpjday [ at ] crashcourse [ dot ] ca>wrote: > > the lawyer took it one step further, asking whether there was a way > to absolutely *guarantee* that someone you emailed had read that > email. i'm not a mail protocol expert but i thought about it briefly, > then said i didn't think so, and used my mail setup as an example. > > People commonly call a shared exchange server "email", and I believe with exchange and a bunch of microsoft email clients you can tell when an email has been displayed. But even then, I don't know how this could ever be the same as saying that a person actually *read* the email. Ian