Mark as Unread
Windows
Ctrl+U
Marks the selected email as unread.
Marks the selected email as unread. Here's the keyboard shortcut for every version of Outlook, plus other ways to do it.
Marks the selected email as unread.
Press Ctrl + U.
Press Cmd + Shift + T.
Press U.
On Windows, press Ctrl + U. On a Mac, press Cmd + Shift + T.
Yes: Cmd + Shift + T.
Yes: U.
Not yet verified · Last reviewed: not yet reviewed · Microsoft's official shortcut list