Oh crap. Gmail is deprecating support for picking up mail from a remote server using POP3 polling in January 😠Given that I switched to this mode due to reliability problems with direct delivery via mail forwarding, this really sucks...
@nelson @jmason after the nightmare that was fetchmail vs. Gmail OAUTH 2.0, I gave up and just forward gmail to my ISP account. But thankfully gmail was never anything other than a place to trap notifications from FB and that sort of crap I don't care about, anyway.
https://billauer.co.il/blog/2022/06/fetchmail-gmail-lsa-oauth2/