My wife and I have been using Gmail with Pegasus on separate computers for years and it stopped working for her on 6/20/21. That's the last day she could either send or receive email. (She's using v4.73.639)

As far as I can tell, she didn't do anything unusual on that day and my account has worked perfectly all along.

When she attempts to send an email, she gets: DESCRIPTION OF ERROR: Protocol error: The server has unexpectedly refused or failed a request made by Pegasus Email.

When she attempts to download email, she gets: The host claims the username and password is invalid. (She hadn't changed the password at that point and we've tried to change the password since, without any improvement)

In addition, Google started to send CRITICAL SECURITY ALERT emails: Sign in attempt was blocked. Someone just used your password to sign into your account from a non-Google app.

I can't remember exactly what happened then, but I searched for a solution on the internet and think that I actually followed a suggestion to try to list Pegasus as a trusted app, but I'm a little fuzzy about this after 8 months. (Nothing I tried ever worked)

Any suggestions?

Thanks