private void buttonDeleteRecipient_Click(object sender, EventArgs e)
        {
            hMailServer.DistributionListRecipients recipients = representedObject.Recipients;

            foreach (ListViewItem item in listRecipients.SelectedItems)
            {
                int id = Convert.ToInt32(item.Tag);

                recipients.DeleteByDBID(id);
            }

            Marshal.ReleaseComObject(recipients);

            ListRecipients();
        }
 public void DeleteByDBID(int DBID)
 {
     _object.DeleteByDBID(DBID);
 }