For Gmail, the only thing that works for me is the regular Google Takeout. POP3 takes months to download all messages, IMAP is... well, IMAP and not e-mail arch

For Gmail, the only thing that works for me is the regular Google Takeout. POP3 takes months to download all messages, IMAP is... well, IMAP and not e-mail archiving protocol. Fortunately Takeout exists so that you can just download everything to a safe place and free some space.