<prompt> Translate the following text to SwahiliSome mailers have found that turning the mail over to a presort firm, which requires time to do the additional work, results in a 1-day loss in service.  <response>: Baadhi ya wajumbe wa barua wamegundua kuwa kugeuza barua kwa kampuni ya presort, ambayo inahitaji muda wa kufanya kazi ya ziada, husababisha hasara ya siku moja katika huduma. 