We considered it as a replacement to Slack to decided to stay on Slack. The reason is that we were unable to configure any meaningful network/firewall policy fo

We considered it as a replacement to Slack to decided to stay on Slack. The reason is that we were unable to configure any meaningful network/firewall policy for it. The app reports all your actions to a bunch of 3rd parties, which we obviously want to cut, but as I remember the main problem was that their backend API is also non static and changes its IP all the time so that was a total mess to track and configure properly.