title: How can I send MIME data with an email using c# aspx
body: <p>I want to send a password email to a user, however the customer wants an image embedded (inline) in the email.</p>
  
  <p>I created an email, saved the data to a txt file, during my code I read in the template but when I send it the line endings are broken and therefore the MIME data is broken.  I just get =3D</p>
  
  <p>What am I doing wrong?</p>
  
  <pre><code>    string FILENAME = Server.MapPath("~/GuestUserTemplate.txt");
      StreamReader objStreamReader = File.OpenText(FILENAME);
      string sEmailTemplate = "";
      string input = null;
      while ((input = objStreamReader.ReadLine()) != null)
      {
          sEmailTemplate = sEmailTemplate + input;
      }
      objStreamReader.Close();
  
      /* send an email */
      MailMessage msg = new MailMessage();
      msg.IsBodyHtml = true;
      msg.To.Add(new MailAddress(sToEmail));
      msg.From = new MailAddress(sFromEmail);
      msg.Subject = sEmailSubject;
      msg.Body = sEmailTemplate;
      //try
      {
          client.Send(msg);
      }
      //catch (Exception excm)
      {
  
      }
  </code></pre>
  
  <p>Just done a bit more detective work.  The email I am sending out has this in the header:</p>
  
  <pre><code>MIME-Version: 1.0
  Content-Type: text/html; charset=us-ascii
  Content-Transfer-Encoding: quoted-printable
  </code></pre>
  
  <p>Where as an email which has inline images has:</p>
  
  <pre><code>Content-class: urn:content-classes:message
  MIME-Version: 1.0
  Content-Type: multipart/related;
      boundary="----_=_NextPart_001_01C9C98D.6552117E";
      type="multipart/alternative"
  </code></pre>
  
  <p>It seems that I need to set the Content type to multipart but I am not sure how...</p>