/// <summary>
/// Returns null if parsed string was not of the valid email format.
/// Otherwise return a part of an email address.
/// </summary>
/// <param name="part"></param>
/// <returns></returns>
public string this[EmailAddressParts part]
{
get { return(this.Match.GetGroupValue(part.ToString())); }
}
/// <summary>
/// Returns null if parsed string was not of the valid email format.
/// Otherwise return a part of an email address.
/// </summary>
/// <param name="part"></param>
/// <returns></returns>
public string this[EmailAddressParts part]
{
get { return this.Match.GetGroupValue(part.ToString()); }
}
