Many
of us love sending emails and you may get excited how your recipient
reacts to your email.But if u dont know whether your email has been
read or not,how will you react to it ..!!. There is a simple solution
for this ..

Following are some of the services which helps you to know whether your email had been read by your recipient or not ..
+ Spypig
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.
+ Bigstring
It
is a free 2 GB email service that includes rich secure and certified
mail services and lets you password-protect, track, expire or edit sent
messages.
+ Readnotify
It tells you when email you sent gets read /re-opened /forwarded and lot more.
+ Didtheyreadit
It shows when your email was opened, how long it remained opened, where geographically, it was viewed.
+ Msgtag
It lets you know when and whether emails are opened. It works with Gmail, multiple recipients, and lets you be notified via SMS.