http://tornotdffnimkvhlt5jfnoggfgcy4qbetfgqcjuyzcbhydkqanob3yqd.onion/faq
Yes, you have to check the notification box below the note and enter your email address. Tornote will send an email to that address when the note is read. You can also add a reference to identify each note. The recipient can copy and paste the note, so it doesn't actually self-destruct, right?