Thunderbird for Android Community Forum

My K-9 in Android suddenly stopped to work a couple of days ago. The server asks for autentification. I haven't changed anything. I've uninstalled and reistalled the app and restarted my phone a Samsung S22 ultra several times. The app is recognating some settings automatically but it doesn't accept my old password with 16 letters in a group of four with highfens in between. What shall I do, please? Something wrong with the server? The version of the app is 17.0 updated March 16th 2026.

I am not receiving emails on my phone. I have had to change my password on my laptop but don't know how to do that on my phone. It would be very helpful if you could tell me how to do it. Thank you. Nick

I cannot sign in. I see a box showing Mozilla Thunderbird below above it says Micros I see my Micros account. I have 10 password I haven't used any them that I remember. If I try too many times I am blocked. I was able to see what I would have to to get a QR code but not anymore. When I tried to get code last a few days ago There were black vertical lines moving from left to right so I could not take picture using my S23. I did some search and it I have to change some setting on my S23. I have new version of Thunderbird on my S23. No password since I have not been able to take QR image. This is not working for a week now. No emails to my S23 account. Please help me.

Thunderbird will not forward to Website of Outlook (or other services like Yandex) for logging into account to setup access via OAuth 2.0. The settings were imported from Thunderbird for Desktop via QR-Code and are working there fine. But not on Android. Can this problem be solved?