quote_if_necessary (MailFactory)

    # File lib/mailfactory.rb, line 440
      def quote_if_necessary(text, charset, instruction = false)
        return unless text
        text = text.dup.force_encoding(Encoding::ASCII_8BIT) if text.respond_to?(:force_encoding)
        #(text =~ CHARS_NEEDING_QUOTING) ? (instruction ? quoted_printable_with_instruction(text, charset) : quoted_printable_encode(text)) : text
        instruction ? quoted_printable_with_instruction(text, charset) : quoted_printable_encode(text)
      end