You can delete all the email messages from your inbox in just a few steps.
Note: If the instructions don't match what you see, you might be using an older version of Outlook on the web. Try the Instructions for classic Outlook on the web.
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At the top of your inbox, above the message list, select the check box.
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Above the message list, select Delete. All the email in your inbox will be moved to the Deleted Items folder.
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To permanently delete the messages, right-click the Deleted Items folder and select Delete all.
Instructions for classic Outlook on the web
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At the top of your inbox, above the message list, hover until a check box appears. Then, select the check box to highlight the messages on the page.
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In the reading pane, select Select everything.
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Select Delete. All the email in your inbox will be moved to the Deleted Items folder.
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To permanently delete the messages, right-click the Deleted Items folder and select Delete all.
