ESPAÑOL AQUÍ: Sobre Mundos

Join a “pay it forward” network, by sending and receiving letters . 🗓️ December cycle is underway, sign up for January 2026 below

🫳 Each envelope opens up a world

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🫴 A global exchange of letters, postcards and small analog treasures.

What does it mean to be an mail-naut? 📧👩‍🚀

They are those who participate in the Worlds in an envelope community: ****explorers of worlds contained in an envelope. Each letter is a vessel, each envelope an adventure, and each exchange a voyage into the unexpected.

How does it work?

1. Sign up → make a one-time payment of ~€1 (to avoid BOTs and keep the space safe 🤖) and complete your registration.
2. Confirm your participation monthly → we will ask you if you want or have time to participate.
3. Prepare your letter → You don't know who will receive it yet, and that's part of the charm! Optional: you will receive a creative trigger: words, images or sounds to inspire you.
4. Receive the address to send it to → Someone else's in the world.
5. Send your letter → By post and confirm on our website.
6. Receive your letter → Someone else in the world will send you a letter to your name and address.

More info (click & expand)

✅ Do you want to join us?