# File lib/mime/message.rb, line 35
    def to_s
      #--
      # In an RFC 2822 message, the header and body sections must be separated
      # by two line breaks (CRLF). One line break is deliberately missing,
      # allowing a body supplier to append headers to the top-level message
      # header section. Consequently, the body supplier is responsible for
      # handling the body-header separation. Furthermore, if the +body+ is
      # empty, the header section will be properly terminated, creating a
      # standards compliant message.
      #++

      "#{headers}\r\n#{body}\r\n"
    end