If your links don’t show proper images check the following: System console: Allow public links System console: Image proxy on and set to local vim /opt/mattermost/config/config.json >> “AllowUntrustedInternalConnections”:”localhost 127.0.0.1 mattermost.mydomain.mytld 192.168.0.0/24″ System console: SiteURL >> Set no port or :443 at the end, do it like https://mattermost.mydomain.mytld or https://mattermost.mydomain.mytld:443 Avoid default port 8065 like https://mattermost.mydomain.mytld:8065 […]