Sending notes to self one button away or for sending notes from unprotected networks that may intercept your login password.
To ensure that only you are sending notes to your email address and no anonymous messages are transmitted a sending key system is implemented.
The sending key is generated and sent to your email address the first time you use the application.
If by any chance you forget your sending key, you can always send the message without the key, and retrieve the message later. Instruction how to retrieve the notes are provided in the email.