If you want to remember to read a message later, you can mark it as unread. You can also mark messages as read without opening them.
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Mark a message as unread or read
- On your computer, go to Gmail.
- On the left of the message, check the box.
- At the top, click Mark as unread or Mark as read .
Mark all messages as read
- On your computer, go to Gmail.
- At the top left of your inbox, check the box to select all your messages.
- At the top, click Mark as read .