Now you can find out when your email has been read by the recipient! No 
more guessing: “Has he or she read my email yet?”
SpyPig is a simple email tracking system that sends you a notification email as soon as the recipient opens and reads your message.
It works with virtually all modern email programs: Outlook, Eudora, Yahoo Email, Gmail, Hotmail, AOL Email and many others.
Enterprisers.in 