public MimeEntity()
{
Children = new List<MimeEntity>();
Headers = new NameValueCollection();
ContentType = MimeReader.GetContentType(string.Empty);
Parent = null;
_contentBytes = new List<byte[]>();
RawContent = new MemoryStream();
ContentTransferEncoding = System.Net.Mime.TransferEncoding.SevenBit; // RFC 2045 -- "Content-Transfer-Encoding: 7BIT" is assumed if the Content-Transfer-Encoding header field is not present.
}