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Domestic letter services

A domestic letter is a flexible and affordable solution for many sending needs. It is suitable for personal and effective communications as well as for tasks such as invoicing. Valuable items, reply mail items, sample items, e-invoices—with us, you can receive all domestic letter services from one place.

  • With a letter, you will reach your customers reliably.

  • Letters are an excellent tool for attracting attention.

  • Posti’s letter delivery services always include address clarification.

Domestic letter services

Domestic business letters and machine-sortable standard letters are delivered with the speed of the service you selected.

Valuable Item

When sending important documents or valuable goods, choosing Posti’s Valuable Item services is the best way to ensure safe delivery. You will benefit from item tracking, a receipt of mailing and verification of the recipient’s identity as the item is handed over.

Reply Mail Item

Reply mail items make it easy for your customers to place orders, respond to questionnaires and request to be contacted. The service is free of charge for the customer, and you only pay for returned items and the service’s monthly fee. Reply mail items are also suitable for making declarations to the authorities.

Laboratory samples

The Specimen Item and Express Reply services deliver letter-sized animal or human laboratory samples quickly and reliably – often by the very next day.