Ever Wondered whether someone reads your Mails or not

MAIL TRACK TELLS YOU WHEN SOMEONE HAS READ YOUR EMAIL MESSAGE
Chrome: Corporate email systems often have ways of telling you if an email is read. For users of Gmail in Chrome, MailTrack creates easy read receipts.
MailTrack, like other read receipt extensions, puts a tiny image in the outgoing email that displays when a recipient opens the email. MailTrack is much easier to use if all you need is a simple notification when someone opens your email.

If you install the extension, go to the dashboard and remove the signature at the bottom to avoid advertising while you use it.

MailTrack | Chrome Web Store