title: Reply to a Mail in Mailkit
body: <p>i'm using Mailkit library (Imap) for my project. </p>
  
  <p>I can comfortably send a new message by SmtpClient. </p>
  
  <p>currently I'm digging about how to reply to a particular mail. and is it possible to add more recipients to that reply mail ?</p>
  
  <p>@jstedfast thanks for the wonderful one :)</p>