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();
}