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| Direct and Residue Selections |
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For Mailsort 1400 mailings are split into two levels: Direct Selections which are sorted to the level of a local Delivery Office and generate a higher discount; the Mailsort Database contains around 1,400 Direct selections. Residue selections which are sorted to a Postcode area level. As the name suggests, they take remainders (or residues) from Direct selections. There might not be enough items to meet the minimum volume criteria for a Direct selection (25 items for a letter-sized item or 5 items for a large letter, A3 packet and packet-sized items), or they may have no Postcode or only part of a Postcode and therefore need to be matched via the posttown. The Mailsort Database contains about 120 Residue selections. For Mailsort 700 a number of Direct selections are combined to reflect the fact that mail is sorted by a mechanised process. This level of sorting is abbreviated to the term 'Mech Direct selections'. The minimum number of items for Mech Direct selections is the same as for Mailsort letters (25 items). |