In fact, Google is the only major company who uses TLS for mail transfers: http://i.i.cbsi.com/cnwk.1d/i/tim2/2013/06/21/Webmailencryptionchart.jpg http://i.i.c

In fact, Google is the only major company who uses TLS for mail transfers: http://i.i.cbsi.com/cnwk.1d/i/tim2/2013/06/21/Webmailencryptionchart.jpg http://i.i.cbsi.com/cnwk.1d/i/tim2/2013/06/21/Webmailencrypt...