When you enable pop for all email,. At the top, click the forwarding and pop/imap tab. If you need to use pop instead of imap, set up recent mode. recent mode shows your last 30 days of emails from gmail.
Restrict which imap clients people can use —you can choose to allow all imap. At the bottom, click save changes. In the pop download section, select enable pop for all mail.
It's easiest to use gmail on multiple email clients using imap. To the right of the address bar, tap more settings. Turn on pop, imap, or both —you can turn on pop and imap or turn them on independently of each other.