Go to a Backpack page and click the email address at the bottom

Each page has its own unique email address. Make sure you’re emailing the right page.

Enter “Note:” and the title of the note in the subject field
and enter the note itself in the body of the email

FYI, If you just say “Note” and leave the rest of the subject blank you’ll get a note without a title.

Send the email and that note will appear on your Backpack page

This could take a few minutes depending on the speed of your email app, internet connection, and mail server.