The technology has improved to a great extent and has come a long way that you can have it included in all your works otherwise you will be the one who is left behind. The companies have understood this fact and would be looking to bank on this fact. This is the reason that officials have started using the E-mails as the proof for the companies dealings. It's really surprising but its true. It would not be long before the E-mails would be presented as the major source of evidence.