<prompt> Translate the following text to EnglishKwa kuwa wajumbe wengi wa barua wana mifumo ya barua ya kompyuta na wana kiasi cha kutosha, wanaweza kufanya kazi ya kuorodhesha mapema kwa gharama ya chini sana.  <response>: Since many mailers have computerized mailing systems in place and have sufficient volume, they can do presorting work at a very low cost. 