Dragging an email from Mail.app or Entourage will result in a note with the email's name and the body copy as the note's text.
From v8.9.0, when receiving a dragged email from Mail.app, Tinderbox now records the email’s URL in the new note's URL attribute. The contents are also parsed for Text link creation via the Ziplinks method-style mark-up which is then evaluated and links created.