Keep Mail Notes Out of Your Inbox

For the first time, I used notes in Apple Mail today. Unexpectedly, the note I created showed up in my Inbox. As it turns out, by default, Mail will automatically store any notes you create inside the inbox of that email account. Fortunately, it's rather simple to disable this functionality.

First, go to Apple Mail and open its preferences (Cmd-,). In the preferences window, click on the "Accounts" section. Select the account you create notes on and go to the "Mailbox Behaviors" section. Finally, uncheck the box for, "Show notes in Inbox."