![](https://help.apple.com/assets/59CDA4890946221F6E35ACDA/59CDA65E094622F35A35CAE2/en_US/6dba1b524965bcfe776bd8a49ffc646f.png)
Use the Mail sidebar or Favorites bar
Mail sidebar
The Mail sidebar shows mailboxes, folders, and flagged items for the email accounts you’re using in Mail.
![The Mail sidebar showing different accounts and mailboxes. Above the sidebar is the Mailboxes button (located in the Favorites bar) that you click to show or hide the sidebar.](https://help.apple.com/assets/59CDA4890946221F6E35ACDA/59CDA65E094622F35A35CAE2/en_US/fd613fb3138ba0baded2c263537552f5.png)
Show or hide the sidebar: Click Mailboxes in the Favorites bar, or choose View > Show Mailbox List or View > Hide Mailbox List.
Resize the sidebar: Drag the sidebar’s separator bar left or right. If you drag it all the way to the left, the sidebar is hidden.
Adjust the size of icons in the sidebar: Choose Apple menu > System Preferences, click General, then select a sidebar icon size.
Favorites bar
The Mail Favorites bar provides quick access to your favorite or most-used mailboxes and folders.
![The Favorites bar showing the Mailboxes button and buttons for Inbox, VIPs, Sent, Drafts, and Flagged mailboxes.](https://help.apple.com/assets/59CDA4890946221F6E35ACDA/59CDA65E094622F35A35CAE2/en_US/49193e816dee4edb1c26d04a3f2cec8e.png)
Show or hide the Favorites bar: Choose View > Show Favorites Bar or View > Hide Favorites Bar.
Add items to the Favorites bar: Drag a mailbox from the Mail sidebar to the Favorites bar. Mail doesn’t move the mailbox; it adds an alias for it to the Favorites bar.
Remove items from the Favorites bar: Drag an item from the Favorites bar. Visual and sound effects indicate it has been removed.