Instructions for mailer companies
On this page, you can find mailing instructions and tools for mailing large or regular publication, letter and direct advertisement batches.
The latest version of the instructions: Guide for Batch-Sorted Postal Items 2020 Guide to machine-sortable items 2020 (updated 26.5.2020) Mailing instructions for Customer Direct 2020 Mailing instructions for Economy Standard Letter Pro 2020 Mailing instructions for Priority Standard Letter Pro 2020 Mailing instructions for Home Direct
Mailer companies’ tools
Mailer companies' tools, electronic ordering channels, are available on the Posti service channels. All of the ordering channels are logged into using the same user codes. User codes can be obtained from your company's administrator. If your company does not yet have an administrator, order user codes.
If you wish to make last minute changes to mailing batch posting times or locations informed on PTP, please submit a change request using this form. Changes are subject to a charge.