From Electromagnetic Field 2022
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The Sneakernet logo, featuring a sneaker shoe with laces forming a postmark wave.

The Sneakernet is the site's postal system, which allows you to send postcards within and beyond the Electromagnetic Field site.

Any problems? Call POST (7678) from a phone.

Sending your mail via the Sneakernet

Mailboxes around the site will have a box containing postcards. Alternatively, pick up a postcard from the Sneakernet desk in the Info Tent.

Drop your postcard in one of the mailboxes around the site, clearly addressed with who/where you would like it delivered to. Collections should occur on a best-effort hourly basis during Info Tent opening hours. If you are sending a postcard to a person and you know their DECT number, village, etc, please include it!

Postcards can be addressed to other hacker events within the Chaos Post network, from MCH2022 onwards.

If you wish to send a postcard into the default world via Royal Mail, include a clear address, attach the correct postage, and it will be taken to a Post Office at the end of the event. Stamps can be purchased from the shop.

Delivering for the Sneakernet

If you want to try delivering a couple of postcards, head to the Sneakernet desk in the Info Tent and make yourself known. You will be given a couple of of postcards from an outbox. From there, walk around the camp to deliver them!

Can't find the person or place? Not a problem, return the postcard to the undelivered box. If you're up for a challenge, try to deliver postcards from that box.

Ideas for what to send

  • A thank you to a volunteer.
  • A note to a friend.
  • A love letter to an enemy.
  • The entire script of The Bee Movie (good luck!).


  • All items sent at your own risk.
  • We are not responsible for loss and/or damage.
  • Message confidentiality is not guaranteed.
  • Anything that is not a postcard or standard letter will not be accepted.