hMailServer.Administrator.Nodes.NodeDNSBlackLists.OnAddDNSBlackList C# (CSharp) Method

        internal void OnAddDNSBlackList(object sender, EventArgs e)
        {
            IMainForm mainForm = Instances.MainForm;
             NodeDNSBlackList newDNSBlackListNode = new NodeDNSBlackList("", 0);
             mainForm.ShowItem(newDNSBlackListNode);
        }