My flatmate got a mail from Google:
On May 30, you may lose access to apps that are using less secure sign-in technology
To help keep your account secure, Google will no longer support the use of third-party apps or devices which ask you to sign in to your Google Account using only your username and password. Instead, you’ll need to sign in using Sign in with Google or other more secure technologies, like OAuth 2.0.
What do you need to do?
Email software, like Outlook 2016 or earlier, has less secure access to your Gmail. Switch to Office 365, Outlook 2019 or newer, or any other email software where you can sign in using Sign in with Google.
With a link to Less secure apps & your Google Account - Google Account Help
She uses a “General email” account, as she was unable to create a “Google” account.
Is it likely that such an account will stop working on the Mail app and will a “Google” account work now instead?
It will probably be a good time to get her to update her phone, as she’s still on 3.0.something…