Question

I have to read mails which is send by send grid through c# code.

I have read the stream which is like that

     --xYzZY
Content-Disposition: form-data; name="headers"

Received: by 127.0.0.1 with SMTP id 8KwcWqETbu Fri, 25 Jan 2013 03:49:42 -0600 (CST)
Received: from mail-ve0-f173.google.com (mail-ve0-f173.google.com [209.85.128.173]) by mx5.sendgrid.net (Postfix) with ESMTPS id A1D5A2621B68 for <[e-mail]>; Fri, 25 Jan 2013 03:49:42 -0600 (CST)
Received: by mail-ve0-f173.google.com with SMTP id b10so69883vea.32 for <[e-mail]>; Fri, 25 Jan 2013 01:49:42 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:x-received:date:message-id:subject:from:to :content-type:x-gm-message-state; bh=w5qN+xkC2AsH6lrtfF/wYnPJ3C3PTO0oVvChHKiLsXM=; b=hgrflJqveG6cOlK5XNz7qI3fJjIOvOeJsmZhyPU+vRFsKlLPctb91oGxz/0v+kzABj us04rC6cW6CWIIR4W1dYfUEpXYdBgbVoOMPs4ef005jMHPOfpMx81YAW6tpq1HQyLh1W 4n49LBm1GssCJhbhwSMUKRwIVqBmLtxMzVPnWVrCqMB8e2KSn78yw58JFOtf7qv+tKE3 oqa4n04ywmcVCKhEx2bhIvpo7IJQ5BjC62Q3iNdQgTJLw1eKQ9nMF8BTxXLFlFZK5HHb fpLFkgiIGqqYJioKtyS0slkJQA1P8OSrjkDnlmLXJU7btatnxd+a94wYKNB6yHwYpL+M f4SQ==
MIME-Version: 1.0
X-Received: by 10.52.179.136 with SMTP id dg8mr4231328vdc.81.1359107382079; Fri, 25 Jan 2013 01:49:42 -0800 (PST)
Received: by 10.58.155.42 with HTTP; Fri, 25 Jan 2013 01:49:42 -0800 (PST)
Date: Fri, 25 Jan 2013 15:19:42 +0530
Message-ID: <[e-mail]>
Subject: dfdsfdsfds
From: Pragati Kumar <[e-mail]>
To: Eric Test <[e-mail]>
Content-Type: multipart/alternative; boundary=bcaec5014c15b870c904d419d845
X-Gm-Message-State: ALoCoQmTr/zLwW3mbRCZRyL5EOYaPnPrpXB+GEtN+sTQ1PdGB/ulN//n2SaQiYaSbKRyVaqLJfBq

--xYzZY
Content-Disposition: form-data; name="dkim"

none
--xYzZY
Content-Disposition: form-data; name="to"

Eric Test <[e-mail]>
--xYzZY
Content-Disposition: form-data; name="html"

<div dir="ltr"><br clear="all"><div style>fdsfdsfdsfdsfdsfds</div>-- <br><div dir="ltr"><div>Thanks With Regards.</div><div><br></div><div><b>Pragati Kumar Singh</b></div><div><b>Software Developer (.NET)</b></div><div><b>Mob:  [phone]</b></div>
<div><b><br></b></div><div><b>SDPLabs</b></div><div><b><a href="mailto:[e-mail]" target="_blank">[e-mail]</a></b></div><div><b><a href="http://www.sdplabs.com" target="_blank">www.sdplabs.com</a></b></div>
<div><br></div><div>India:  [phone] (Office)</div><div>           [phone] (Office)</div><div>USA:   [phone] (Office)</div><div>           [phone] (Cell)</div><div>Fax:   [phone]</div>
</div>
</div>

--xYzZY
Content-Disposition: form-data; name="from"

Pragati Kumar <[e-mail]>
--xYzZY
Content-Disposition: form-data; name="text"

fdsfdsfdsfdsfdsfds
-- 
Thanks With Regards.

*Pragati Kumar Singh*
*Software Developer (.NET)*
*Mob:  [phone]*
*
*
*SDPLabs*
*[e-mail]*
*www.sdplabs.com*

India:  [phone] (Office)
           [phone] (Office)
USA:   [phone] (Office)
           [phone] (Cell)
Fax:   [phone]

--xYzZY
Content-Disposition: form-data; name="spam_report"

Spam detection software, running on the system "mx5.sendgrid.net", has
identified this incoming email as possible spam.  The original message
has been attached to this so you can view it (if it isn't spam) or label
similar future email.  If you have any questions, see
the administrator of that system for details.

Content preview:  fdsfdsfdsfdsfdsfds -- Thanks With Regards. *Pragati Kumar
  Singh* *Software Developer (.NET)* *Mob:  [phone]* * * *SDPLabs* *[e-mail]*
   *www.sdplabs.com* India:  [phone] (Office)  [phone] (Office)
   USA:  [phone] (Office)  [phone] (Cell) Fax: [phone]
   [...] 

Content analysis details:   (-0.7 points, 5.0 required)

 pts rule name              description
---- ---------------------- --------------------------------------------------
 0.0 HTML_MESSAGE           BODY: HTML included in message
-0.7 RCVD_IN_DNSWL_LOW      RBL: Sender listed at http://www.dnswl.org/, low
                            trust
                            [209.85.128.173 listed in list.dnswl.org]
 0.0 T_MIME_NO_TEXT         No text body parts


--xYzZY
Content-Disposition: form-data; name="envelope"

but I am unable verify its format so that it could be inserted into our database.
Please help to decode it so that I can read the following fields in the best possible way.
1. To
2. From
3. BCC
4. Body
5. Subject
6. Attachment.

Thanks in anticipation


{"to":["[e-mail]"],"from":"[e-mail]"}
--xYzZY
Content-Disposition: form-data; name="attachments"

0
--xYzZY
Content-Disposition: form-data; name="subject"

dfdsfdsfds
--xYzZY
Content-Disposition: form-data; name="spam_score"

-0.689
--xYzZY
Content-Disposition: form-data; name="charsets"

{"to":"UTF-8","html":"ISO-8859-1","subject":"UTF-8","from":"UTF-8","text":"ISO-8859-1"}
--xYzZY
Content-Disposition: form-data; name="SPF"

none
--xYzZY--

I have to serialize this into json format.

I have tried

 private string RequestInputStreamToString()
    {
        System.Text.StringBuilder sb = new StringBuilder();
        int streamLength;
        int streamRead;
        System.IO.Stream s = HttpContext.Current.Request.InputStream;
        streamLength = Convert.ToInt32(s.Length);
        Byte[] streamArray = new Byte[streamLength];
        streamRead = s.Read(streamArray, 0, streamLength);
        for (int i = 0; i < streamLength; i++)
        {
            sb.Append(Convert.ToChar(streamArray[i]));
        }
       return sb.ToString();
    }
 string jsontext =RequestInputStreamToString();
 var json = JObject.Parse(jsontext);

But it is thronging error

Error reading JObject from JsonReader.

for more reference please check http://sendgrid.com/docs/API_Reference/Webhooks/parse.html
but it is given in php and I want in C#

Answer 1

After the hard time I find out the solution.
These are the content of multipart/form-data.
Each and every data can be read through

    HttpContext context;
    String to=context.Request.Params["to"];
    String from=context.Request.Params["from"];
    String html=context.Request.Params["html"];
        .......etc..............

After reading its content and node it can be passed to class properties and further it can be serialized into json or xml as per yours requirement.