We had the same communications with Google that encouraged us not to use App Passwords, and hinting at a future removal. Plus the fact that App Passwords expire when the Google Account password changed, means you can’t count on the App Password working.

We are a large enough organization with that we have 25 years of use cases beyond “People Reading in their Inbox”. Printers and scanners have been mentioned. But we also have email used to automatically move data between systems.

Sometimes this is due to limitations of third party systems, sometimes we have to decide does it make sense to invest the time to rewrite a well tested tool that uses POP.

So we have decided to a standards based POP, IMAP, SMTP email service for these automated systems. It takes much less time to configure and test swapping POP server info than migrating to OAUTH

The end user email stays with Gmail.