I redid the upgrade.
Other accounts are working. the accounts that are not working have 2fa enabled. could it have to do with the 2fa?
Yup,
i found the problem. I do use app passwords to authenticate my mobile device. The only thing that is working is to disable the 2fa. The its working again. So when i disable 2fa in the below screen it works. If 2fa is enabled it fails to authenticate with the new mailcow update.

Yup,
i found the problem. I do use app passwords to authenticate my mobile device. The only thing that is working is to disable the 2fa. The its working again. So when i disable 2fa in the below screen it works. If 2fa is enabled it fails to authenticate with the new mailcow update.

Yup,
i found the problem. I do use app passwords to authenticate my mobile device. The only thing that is working is to disable the 2fa. The its working again. So when i disable 2fa in the below screen it works. If 2fa is enabled it fails to authenticate with the new mailcow update.

sorry,
something duplicated my picture and post………