This container can be pulled via: docker pull registry.opensuse.org/devel/kubic/containers/container_arm/opensuse/dovecot:2.3 docker pull registry.opensuse.org/devel/kubic/containers/container_arm/opensuse/dovecot:2.3-3.22 docker pull registry.opensuse.org/devel/kubic/containers/container_arm/opensuse/dovecot:latest Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.