/// <summary>
        /// Parses MIME entiry from the specified stream.
        /// </summary>
        /// <param name="stream">Source stream.</param>
        /// <param name="headerEncoding">Header reading encoding. If not sure UTF-8 is recommended.</param>
        /// <param name="defaultContentType">Default content type.</param>
        /// <exception cref="ArgumentNullException">Is raised when <b>stream</b>,<b>headerEncoding</b> or <b>defaultContentType</b> is null reference.</exception>
        internal protected void Parse(SmartStream stream, Encoding headerEncoding, MIME_h_ContentType defaultContentType)
        {
            if (stream == null)
            {
                throw new ArgumentNullException("stream");
            }
            if (headerEncoding == null)
            {
                throw new ArgumentNullException("headerEncoding");
            }
            if (defaultContentType == null)
            {
                throw new ArgumentNullException("defaultContentType");
            }

            m_pHeader.Parse(stream, headerEncoding);

            m_pBody = m_pBodyProvider.Parse(this, stream, defaultContentType);
            m_pBody.SetParent(this, false);
        }
        /// <summary>
        /// Parses body from the specified stream
        /// </summary>
        /// <param name="owner">Owner MIME entity.</param>
        /// <param name="defaultContentType">Default content-type for this body.</param>
        /// <param name="stream">Stream from where to read body.</param>
        /// <returns>Returns parsed body.</returns>
        /// <exception cref="ArgumentNullException">Is raised when <b>stream</b>, <b>defaultContentType</b> or <b>stream</b> is null reference.</exception>
        /// <exception cref="ParseException">Is raised when any parsing errors.</exception>
        protected static new MIME_b Parse(MIME_Entity owner, MIME_h_ContentType defaultContentType, SmartStream stream)
        {
            if (owner == null)
            {
                throw new ArgumentNullException("owner");
            }
            if (defaultContentType == null)
            {
                throw new ArgumentNullException("defaultContentType");
            }
            if (stream == null)
            {
                throw new ArgumentNullException("stream");
            }

            // We need to buffer all body data, otherwise we don't know if we have readed all data
            // from stream.
            MemoryStream msBuffer = new MemoryStream();

            Net_Utils.StreamCopy(stream, msBuffer, stream.LineBufferSize);
            msBuffer.Position = 0;

            SmartStream parseStream = new SmartStream(msBuffer, true);

            MIME_b_MessageDeliveryStatus retVal = new MIME_b_MessageDeliveryStatus();

            //Pare per-message fields.
            retVal.m_pMessageFields.Parse(parseStream);

            // Parse per-recipient fields.
            while (parseStream.Position - parseStream.BytesInReadBuffer < parseStream.Length)
            {
                MIME_h_Collection recipientFields = new MIME_h_Collection(new MIME_h_Provider());
                recipientFields.Parse(parseStream);
                retVal.m_pRecipientBlocks.Add(recipientFields);
            }

            return(retVal);
        }