    # File lib/vmail/message_formatter.rb, line 28
        def process_body(target = @mail)
          out = if target.header['Content-Type'].to_s =~ /multipart\/mixed/
            target.parts.map {|part|
              if part.multipart?
                part = find_text_or_html_part(target.parts)
                format_part(part)
              else
                format_part(part)
              end
            }.join("\n#{'-' * 39}\n")
          elsif target.header['Content-Type'].to_s =~ /multipart\/alternative/
            part = find_text_or_html_part(target.parts)
            format_part(part)
          else
            format_part(target)
          end
          out
        end