/// <summary>Removes a previously added BCC recipient.</summary>
 /// <param name="address">
 ///     The recipient's email <paramref name="address" /> .
 /// </param>
 public void RemoveBccAddress(string address)
 {
     if (BccAddressList != null && !string.IsNullOrWhiteSpace(address))
     {
         BccAddressList.Remove(address);
     }
 }
 /// <summary>
 ///     Adds a BCC email <paramref name="address" /> to the message.
 /// </summary>
 /// <param name="address">The BCC email address.</param>
 public void AddBccAddress(string address)
 {
     if (BccAddressList == null)
     {
         BccAddressList = new List <string>();
     }
     if (!string.IsNullOrWhiteSpace(address))
     {
         BccAddressList.Add(address);
     }
 }