Adding Recipient's Load Feedback Might Improve Email Usability30 Jun 2011
Good feedback is an essential ingredient in all well-designed systems. The courteous.ly system provides feedback on how busy the recipient of your email is, which can help manage your expectation of when you can expect a reply. Below is a short video explaining the idea. Read more about courteous.ly in the Georgia Tech article, Taking Email Etiquette to the Next Level.