Using OAuth2 with POP3 Gmail account - no OAuth2 option

[Cactus]

I’m new to K9 and am attempting to add my POP3 Gmail account to it on an Android phone.
Gmail setup response is userID and password not accepted but I know from previous experience that it’s the OAuth2 that’s not functioning. I see that choosing IMAP provides an OAuth2 choice but I need to use POP3. Why is there no OAuth2 choice and how can I get pop3 Gmail to work?

[Nimueh]

@Cactus

I need to use POP3

Not to start this discussion again but why does one “need” to use POP3? IMAP does everything POP3 does and more, it’s the much safer solution.

But check Google account settings for “app passwords” under security. That used to work for logging into Gmail with K-9, no idea if it still does.

[tchara]

@Nimueh

check Google account settings for “app passwords” under security

According to Google, POP3 is not going away, but you need an app password.

@https://support.google.com/mail/thread/23019816/how-can-i-continue-to-use-pop-based-email-after-oauth-is-required-next-year

POP as a protocol is not being deprecated. If the user want to connect to a less secure app with a 2SV account they will need to generate an app specific password.