Changelog

Product updates, shipped quietly.

A running log of the small and large changes that shaped Pieterpost after launch.

Postbox Hunt across six countries

10 August 2026

Postbox Hunt now lets you hunt in Belgium, Germany, and France too, alongside the Netherlands, Japan, and the United States. Choose a country, open the local map, and add your finds to the collection.

Open Postbox Hunt

Richer text and reusable Designer templates

8 August 2026

Designer now has rich text editing for the details that matter. You can also export a complete design and import it again later, ready for the next letter, campaign, or account.

Open Designer

PieterPost in Portuguese and Polish

7 August 2026

The website and sending flows are now available in Portuguese and Polish. That brings PieterPost to eight languages, from the first page to the letter on its way.

Post to Paper

5 August 2026

Paste a Substack link and turn the article into a real printed letter. Check the paper preview, add the recipient, and let PieterPost take it from the screen to the doormat.

Try Post to Paper

Printable address labels from Mailbook

4 August 2026

Select the contacts you need and turn their addresses into a print-ready PDF or Word document. Choose an A4 or US Letter label sheet, print a free calibration page, and load the labels.

Create address labels
PieterPost Mailbook contacts being turned into print-ready address labels.

PieterPost Designer and Business

4 August 2026

Letters have become a canvas. Add text, photos, shapes, QR codes, and personal fields, then send one letter or a complete personalized batch. Business accounts keep designs, credits, and orders together.

Open Designer
PieterPost Designer with tools for text, images, shapes, and QR codes.

Emoji that make it onto paper

28 July 2026

Hearts, flags, birthday cakes, and the rest now print in your letter just as you wrote them. Emoji work across both print partners, so the paper version keeps the feeling of the original.

PieterPost letter composer with emoji and personalized fields for a batch of letters.

New-address notifications in Mailbook

27 July 2026

When someone adds or updates an address through your private Mailbook link, you now see it straight away. A clearer review flow helps you keep new contact details in the right place.

Open Mailbook
PieterPost Mailbook page for sharing a private address-collection link.

Clearer order status and more local production

21 July 2026

Follow a letter from payment to printing and delivery with a clearer public status page. We also added production in Spain and the United States, so more mail can start its journey closer to the recipient.

Check an order

Registered delivery to Belgium, France, and Germany

15 July 2026

Choose registered delivery for supported addresses in Belgium, France, and Germany. The complete price and available proof of delivery are shown before you pay.

Start a letter
PieterPost checkout with French registered delivery, tracking, and recipient signature.

Postcards straight to the hospital

28 June 2026

Find the hospital, add the patient and ward details, and write your card. PieterPost fills in the postal address and sends it to hospitals in nine countries.

Send a hospital card
Flower postcard for a patient in hospital.

Letters to U.S. representatives

25 June 2026

Find the right federal, state, or local representative, choose one or more recipients, and write a physical letter. PieterPost checks the public mailing address before it goes to print.

Find a representative
Map for finding United States representatives who can receive a letter.

Postbox Hunt crosses two oceans

21 June 2026

Postbox Hunt has reached Japan and the United States. Explore the new maps, photograph a local postbox, and build a collection far beyond the Netherlands.

Open Postbox Hunt
PieterPost Postbox Hunt map of Japan with photographed postbox locations.

Apple Contacts import for Mailbook

20 June 2026

You can now import Apple Contacts into Mailbook from a vCard file, review contacts with birthdays, addresses, or both, select only the people you want, and save them in one step.

Open Mailbook

PieterPost WhatsApp

22 May 2026

PieterPost WhatsApp is now available: send a photo and a few words in WhatsApp, check the preview, and let PieterPost print, stamp, and deliver the postcard.

Open PieterPost WhatsApp
PieterPost WhatsApp postcard preview with chat messages and a printed postcard.

API, MCP, and CLI

5 May 2026

Connect PieterPost to ChatGPT, Claude, Codex, Claude Code, and more. Your agents can now create and send real letters and postcards from the tools they already use.

Explore the API
PieterPost MCP docs with a CLI example and tool configuration.

Postbox Hunt

21 April 2026

Started Postbox Hunt: a map-based challenge where you find real postboxes, take a photo, and collect them in PieterPost. It is live in the Netherlands for now, with more places planned later.

PieterPost Postbox Hunt map with postbox markers in the Netherlands.

Mailbook birthdays

31 March 2026

Added birthdays to Mailbook, plus reminder emails one week before the date so you still have time to send a card or message.

Open Mailbook
Mailbook contact form with a date of birth selected.

QR code for pay it forward

21 June 2025

Added a QR code to the pay it forward functionality. The recipient will also see next to the discount code a QR code.

Letter preview showing the pay it forward QR code.

Added multiple languages

23 May 2025

Added support for multiple languages. The website is now available in Dutch, English, German, Spanish, French, and Italian.

Updated .pdf upload functionality

7 May 2025

Added more support for .pdf files. It's quite a technical thing and not super interesting, but now almost all .pdf files are supported.

Discount code functionality

1 May 2025

Added a discount code functionality to the checkout page. You can now add a discount code to your letter. And because you are reading all this, you can use the discount code PIETER50 to get a discount.

Discount code entry field in the checkout page.

World Map

29 April 2025

Added a world map to the website where you can see where the letters are going. Just for fun.

World map showing where letters are going.

Character support

25 April 2025

Added support for Mandarin Chinese and Finnish characters.

Preview functionality for attachments

21 April 2025

You can now see a preview of photos and .pdfs you upload before you send your letter.

Upload preview showing attached images and PDFs.

Dropzone

12 April 2025

Based on your feedback, we've added a dropzone functionality to make it easier to attach files.

Dropzone area for attaching files.

Fullcolor letters

8 April 2025

We received lots of messages that people were wondering of the letters were printed in full color. Full color is now the standard.

Introducing PieterPost

1 April 2025

Launched the first version of Pieterpost for a small group of beta testers.