For community support and other discussions, you are welcome to visit us on our community channels listed at https://mailcow.github.io/mailcow-dockerized-docs/#community-support. For professional commercial support, please check out https://mailcow.github.io/mailcow-dockerized-docs/#commercial-support instead
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- All third-party firewalls and custom iptables rules are unsupported. Please check the Docker docs about how to use Docker with your own ruleset. Nevertheless, iptabels output can help _us_ to help _you_: `iptables -L -vn`, `ip6tables -L -vn`, `iptables -L -vn -t nat` and `ip6tables -L -vn -t nat `
- Check `docker exec -it $(docker ps -qf name=acme-mailcow) dig +short stackoverflow.com @172.22.1.254` (set the IP accordingly, if you changed the internal mailcow network) and `docker exec -it $(docker ps -qf name=acme-mailcow) dig +short stackoverflow.com @1.1.1.1` - output? Timeout?