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plugin

Post OfficeMinecraft plugin for 1.21

Turn any barrel in to a Post Box with item protection when paired with WorldGuard.

server onlynewest supported 1.21
Latest version
2.3.1
Minecraft
1.19 to 1.21
Java
Java 21+
Loader
Spigot
Licence
not stated
Downloads
2.1k
Updated
9 mo ago
Available on
SpigotMC
Space NodePartner

Host Post Office servers

One click and Post Office is installed with the right loader, on hardware built for it.

  • 1.21
  • Spigot
  • One click plugin install
  • Paper and Purpur ready
  • Automatic updates
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Post Office declares support for, newest first, with the Java runtime that version needs.

Other plugins
MinecraftThroughJavaEvidenceReleased
1.21Spigot21+declared13 Jun 2024
1.20.6Spigot21+declared29 Apr 2024
1.20Spigot17+declared2 Jun 2023
1.19Spigot17+declared7 Jun 2022

Download

From Post Office’s own host. Nothing is re-hosted here.

2.3.1release20 Oct 2025

post-office.external

Download latest
Older versions17
  • 2.3.05 Oct 202522 downloads
  • 2.2.126 Jun 202590 downloads
  • 2.2.011 Jun 202533 downloads
  • 2.1.129 Nov 2024345 downloads
  • 2.1.03 Nov 2024117 downloads
  • 2.0.229 Oct 202497 downloads
  • 2.0.129 Sept 2024110 downloads
  • 2.0.027 Sept 202490 downloads
  • 1.6.311 Sept 2024149 downloads
  • 1.6.214 Jun 2024128 downloads
  • 1.6.119 May 2024119 downloads
  • 1.5.329 Feb 2024125 downloads
  • 1.5.227 Jan 202494 downloads
  • Version 1.5.110 Dec 2023109 downloads
  • 1.5.012 Nov 2023121 downloads
  • 1.4.030 Oct 2023165 downloads
  • 1.1.03 Mar 2023124 downloads

Frequently asked

Does Post Office work on Minecraft 1.21?

Yes. 1.21 is the newest Minecraft version Post Office declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Post Office support?

Everything the author has declared, from 1.19 up to 1.21. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Post Office on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which server software does Post Office need?

Spigot. A build for one server platform will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Post Office?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the plugin itself.

How do I install Post Office?

Download the file from the author's own release, drop it into your server's plugins folder, and restart the server. It generates its configuration on first start. Check the Minecraft version matches the one your server runs.

Where do I download Post Office safely?

From the author's own page on SpigotMC, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Last checked 6 d ago against SpigotMC. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .