# File lib/vmail/message_formatter.rb, line 68
    def find_text_or_html_part(parts = @mail.parts)
      if parts.empty?
        return @mail
      end
      part = parts.detect {|part| part.multipart?}
      if part
        find_text_or_html_part(part.parts)
      else
        # no multipart part
        part = parts.detect {|part| (part.header["Content-Type"].to_s =~ /text\/plain/) }
        if part
          return part
        else
          parts.first
        end
      end
    end