if countMails(emailsIn[currentStart:e-1],CLIENT) >= 2*SETSIZE:
                lastMails = combineData(emailsIn,CLIENT,currentStart,e-1,SETSIZE,getLast=True)
                emailsOut.extend([firstMails, lastMails])
            elif countMails(emailsIn[currentStart:e-1],CLIENT) > 0:
                emailsOut.extend([firstMails])