
Use tabs in Mail on Mac
You can open multiple tabs in the Mail viewer window to easily switch between different mailboxes or emails.
- Go to the Mail app  on your Mac. on your Mac.
- Do any of the following: - Open a new tab in the Mail window: Press and hold the Shift key, then choose File > New Viewer Tab. Or choose View > Show Tab Bar, then click  . .
- Show all tabs: To show thumbnails of all your open tabs, choose View > Show All Tabs. In the tab overview, click a tab or click  to open a new tab in the Mail window. To return to the current tab, choose View > Exit Tab Overview. to open a new tab in the Mail window. To return to the current tab, choose View > Exit Tab Overview.
- Move between tabs: Click a tab, or press Control-Tab or Control-Shift-Tab to go to the next or previous tab. 
- Reorder tabs: Drag a tab left or right. 
- Close a tab: Move the pointer over the tab, then click  . .
- Close all other tabs: Move the pointer over the tab you want to keep open, then Option-click  . .
 
You can also work in tabs when you use Mail full screen.