First Sort Customer Guide

4.0 Mail presentation

4.3 Flexibility

Mail must be presented in the mail trays provided by Whistl. Envelopes must be placed in the trays un- banded and should all be facing in the same direction and the correct way up. Trays should not be overfilled as it makes handling difficult and can cause envelopes to stick.

Items must be flexible enough to bend into an ‘S’ along the longest edge. The ‘S’ test indicates when a mail piece is too stiff to be safely processed without being damaged by the equipment or damaging the equipment. 4.4 Non-machineable items The following are classed as non-machineable and cannot be processed under the FirstSort service. • Polywrap, plastic or window envelopes without plastic film. • Inflexible objects such as coins, pens and keys. • >5mm thick per item. • Heavier than 100g per item. 4.5 Paper weight • Envelopes – 70gsm minimum. • Postcards – 200gsm minimum with a minimum thickness of 0.25mm thick. 4.6 Sealing Each item must be well sealed, taking care to avoid using too much gum or excess water which could result in envelopes sticking together. • Metal clips or staples must not be used. • The items must be sealed on all sides. 4.7 Window envelopes Requirements for addresses to be read through a window are as follows. • The window position must be at least 15mm from the left hand edge of the envelope and at least 18mm from its bottom edge.

In the case of letters mail should be placed with the address the right way up and sitting upright

Note: mail in trays cannot be double stacked.

4.1 Mailing items Customers must ensure wherever possible that mailing items of a similar weight, shape or size are securely placed in Whistl trays. The number of mailing items in each tray will depend on the nature of the mailing items, size and thickness.

Mailings that are presented must be separated according to format and service:

• Letter. • If mail needs to be sprayed with an indicia or return address. 4.2 Mail sequence FirstSort mail should be presented in a geographically random order. This maximises throughput of the process and minimises risk of delay. The easiest way ensure mail is in random order is to stack the ‘print file’ by surname in alphabetical order.

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