Backing up your mail with POP
- Sign in to Gmail.
- Click Settings at the top of any Gmail page, and open the Forwarding and POP/IMAP tab.
- Select Enable POP for all mail (even mail that's already been downloaded).
- Click Save Changes.
- Open the mail client you've configured for Gmail, and check for new messages.
* Messages in Spam and Trash aren't downloaded unless you move them to your inbox or All Mail.
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