The 1.0 version of MailNote for Mac was provided as a free download on our website. This Mac app was originally created by Trifle. The software lies within Communication Tools, more precisely E-mail.
From the developer:
If you happen to send emails to yourself containing information you want to store for later use than MailNote is just what you need. Select MailNote icon in the menu bar, type or paste text, press Send button and that's it, your information is stored in your mail account. If you prefer keyboard shortcuts to mouse opertations, they are ready to use and fully configurable.
You may want to check out more software for Mac, such as Zimbra Toaster, PageSender or Mail to ToDo X, which might be related to MailNote.