Instructions for sending letters

Letters and valuable items

With the help of these mailing instructions you secure directing letter items to the right handling process of Posti.

Mailing letters and valuable items

Mailing lists

The electronic mailing list allows you to submit all necessary information about your mailing. Filling it out is easy, fast and free of charge.

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Machine sorting

Service is suitable for items meeting the requirements set for dimensions, weight, shape, color and contents of machine sortable items.

Machine sorting and envelope sizes

Payment indications

The payment indication is the stamp on your item.

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Instructions for direct mail

Addressed delivery
Mailing instructions for Customer Direct

Unaddressed delivery
Mailing instructions for Home Direct and Home Direct Premium

Laboratory samples

The correct package provides information on the contents, but also remember to mark the item's classification.

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