If the login problem still persists, or more specific, happens now and then and you see some Auth problems on your webmail or mail client, try following steps:
- Add ``auth_debug=yes`` to the ``/overrides/dovecot.conf`` file and delete the pod in order to start a new one, which loads the configuration
- Depending on your network configuration you could still see some ``allow_nets check failed`` results in the logs. This means that the IP is not allowed a login
- If this is happening your network plugin has troubles with the Nginx Ingress Controller using the ``hostNetwork: true`` option. Known cases: Flannel and Calico.
- You should uncomment ``POD_ADDRESS_RANGE`` in the ``configmap.yaml`` file and add the IP range of your pod network bridge (the range that sadly has failed the ``allowed_nets`` test)