Here is updated configuration to the current moment:
docker run -d \
--dns 1.1.1.1 \
--restart=always \
--name watchtower \
-v /var/run/docker.sock:/var/run/docker.sock \
-v /etc/ssl/certs:/etc/ssl/certs \
-e WATCHTOWER_NOTIFICATIONS=email \
-e WATCHTOWER_NOTIFICATION_EMAIL_FROM=Storj_v3_node@odmin.example.local \
-e WATCHTOWER_NOTIFICATION_EMAIL_TO=odmin@odmin.example.local\
-e WATCHTOWER_NOTIFICATION_EMAIL_SERVER=example.local \
-e WATCHTOWER_NOTIFICATION_EMAIL_SERVER_TLS_SKIP_VERIFY \
containrrr/watchtower --debug --interval 21600 --stop-timeout 300s --cleanup