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  • What is the difference between a letter size piece or a flat?

    Mail is classified as either letter sized or non-letter (flat). Letter rate postage is lower and receives faster delivery due to greater efficiencies in the Postal automation equipment used.

    Contact us and we will help you determine if your mailpiece qualifies as a letter or a flat.

    There are other classifications that may apply such as Parcels, Bound Printed Matter, Media mail and Customized MarketMail™.

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