private void Application_ItemSend(Outlook.MailItem Item, ref bool Cancel) { GetMessageID_NEW(null, Item, Item, "OUTGOING"); if (Item.Attachments.Count > 0) { if ((Item.CC != null)) { if (MessageBox.Show("Do you want to send the attachments to CC(s)?", "", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes) { // What should I write here? } } } }