I used to use readnotify.com quite a bit and it only works once in awhile now. It is a service that tells you when someone opens an email, what time, where (city,state, country) and if they opened it more than once and for how long. It was pretty nifty if you wanted to make sure someone received an email. All you had to do was type readnotify.com at the end of the email. If your email was email@example.com, you would just put firstname.lastname@example.org. Johnny would only see email@example.com. It didn't work like some read receipts where the recipient had to actually click on something to give permission to let you know they received it. It was a stealth program. It only works once in a great while now. What is going on? Any ideas?