title: C# Create MIME Message?
body: <p>Is there any built in functionality to MIME a file in C# .Net? What I am looking to do is:</p>
  
  <ol>
  <li>Convert a file into a MIME message</li>
  <li>Sign the MIME Message to a pcks 7 blob</li>
  <li>MIME that pkcs 7 blob</li>
  <li>Finally encrypt the entire thing.</li>
  </ol>
  
  <p>Any suggestions on how I would go about this (not the encryption or signing part but the MIMEing)? What exactly is envolved in MIMEing a file?</p>