/// <summary>
 /// Removes the specified element.
 /// </summary>
 /// <param name="element">The element.</param>
 /// <remarks>Editor:v-liuhch CreateTime:2015/6/27 22:27:01</remarks>
 public void Remove(MailServerElement element)
 {
     if (BaseIndexOf(element) > 0)
     {
         BaseRemove(element.Client);
     }
 }
 /// <summary>
 /// Adds the specified element.
 /// </summary>
 /// <param name="element">The element.</param>
 /// <remarks>Editor:v-liuhch CreateTime:2015/6/27 22:26:06</remarks>
 public void Add(MailServerElement element)
 {
     BaseAdd(element);
 }
 /// <summary>
 /// Indexes the of.
 /// </summary>
 /// <param name="element">The element.</param>
 /// <returns>System.Int32.</returns>
 /// <remarks>Editor:v-liuhch CreateTime:2015/6/27 22:24:16</remarks>
 public int IndexOf(MailServerElement element)
 {
     return(BaseIndexOf(element));
 }