Type .readnotify.com on the end of your recipients' email address then send the email
Your recipient will not see you added the .readnotify.com
Send a test email to someone you know (not to yourself - this might confuse your anti-spam because people don't email themselves normally)
Install our ActiveTracker app* which will add the tracking for you (paid accounts only):
The email will then appear in your Tracking Logs page in your ReadNotify account:
We'll send you an email ReadNotification when your tracked email has been opened.