Return Receipt Service
I am not affiliated with these guys in any way -- I just think this is a really cool service. If you decide to try it out, or purchase a license, please feel free to use my email address as the referral (
ikirson at
stonearchcapital dot
com) -- I think that gives me a free month of service
http://www.returnreceipt.com/
$24/year for basic service
$36/year for advanced service
$3.99/month for monthly advanced service
Here is some information from the site
Welcome to ReturnReceipt — the most advanced email tracking, certification and security service available on the Web!
Take your emails to the next level with:
Proof of Delivery
Self-Destructing Email
Disable Forward / Print
Plus many more robust features!
And here is the most important FAQ
How does it work?
Simply add: .returnreceipt.com to the end of your recipients email address. (eg;
) This directs your email through the ReturnReceipt servers, where it is assinged a tracking code. When your email is opened by your recipients, this tracking code transmits a message to our server which confirms the date and time your email was read.