How do I open/close the Mailbutler Sidebar?

Here is how you can open and close your Mailbutler Sidebar.

Last updated on 04 Feb, 2026

To open the Mailbutler Sidebar, click the Mailbutler icon at the top of your Apple Mail window.
To close the Mailbutler Sidebar, click the close button.Once opened/closed, the Mailbutler Sidebar will stay opened/closed by default.

For instructions on how to attach/detach the Mailbutler Sidebar head to this article.