Notification that authentication has failed, but checking the settings shows nothing wrong

Support
1

Lately K-9 Mail has been showing the following notification

Authentication failed
Authentication failed for redacted@redacted.info.
Update your server settings.
but when checking the settings I see no misconfiguration, so I simply OK what’s already there and things work normally, though the notification will reappear in a day or so.

2

I think maybe sometimes that happens when the mail server is too slow to respond?

It happened on my OP 3 just yesterday - it’s my backup of the backup device and I only turn it on like once/month to update apps and stuff, so I thought maybe I hadn’t changed to OAuth yet. But everything was set up properly and a few minutes later it worked again.

I don’t think it’s really k-9’s fault … more like a glitch where the mail provider, server or even just the device or internet connection glitch out for a minute. I tend to ignore it and just check a few minutes later.

3
I tend to ignore it and just check a few minutes later.
That's what I have been doing and probably will continue doing, though perhaps I'll post something on Google's Gmail forum and see what kind of help there might be. If I get anything useful I'll post it here. Thanks.
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