I am getting Mailman Request like this 1 Mailman moderator request(s) waiting Is it safe to Ignore? Can I disable Mailman even Uninstall? Is ISPConfig using Mainman Internally?
Do not shout with boldface. If you are not using Mailman for anything, you can uninstall it. ISPConfig does work without mailman. As for the request, seems mailman is configured and you should examine that request to see what it is about. Someone maybe is trying to use mailman?