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MailBoxMinecraft plugin for 26.3

A powerful mail system plugin for Minecraft PaperMC servers

server onlynewest supported release 26.3Game MechanicsManagementSocial
Latest version
1.2.0-alpha.0
Minecraft
1.21 to 26.3
Java
Java 25+
Platforms
Purpur, Paper, Folia
Licence
LGPL-3.0-only
Downloads
2.8k
Updated
2 mo ago
Available on
Modrinth
Space NodeOur hosting

Host MailBox servers

One click and MailBox is installed on a Paper or Purpur server built for it.

  • 26.3
  • Purpur
  • Paper
  • Folia
  • One click plugin install
  • Paper and Purpur ready
  • Automatic updates
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

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

Other plugins
MinecraftThroughJavaEvidenceReleased
26.3Purpur, Paper, Folia25+declared15 Sept 2026
26.2Folia, Purpur, Paper25+declared16 Jun 2026
26.1.2Paper, Purpur, Folia25+declared9 Apr 2026
26.1.1Paper, Purpur, Folia25+declared1 Apr 2026
26.1Paper, Purpur, Folia25+declared24 Mar 2026
1.21.11Paper, Purpur, Folia21+declared9 Dec 2025
1.21.10Folia, Paper, Purpur21+declared7 Oct 2025
1.21.9Purpur, Paper, Folia21+declared30 Sept 2025
1.21.8Folia, Purpur, Paper21+declared17 Jul 2025
1.21.7Paper, Purpur, Folia21+declared30 Jun 2025
1.21.6Purpur, Paper, Folia21+declared17 Jun 2025
1.21.4Purpur, Paper, Folia21+declared3 Dec 2024
1.21.1Folia, Purpur, Paper21+declared8 Aug 2024
1.21Paper, Folia, Purpur21+declared13 Jun 2024

Download

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

For Minecraft 26.3

Choose the loader you use before downloading.

  • Paper, Folia, Purpur

    1.2.0-alpha.0 · 24 Sept 2026

    Multiple loaders are listed; verify the file before downloading.

    Choose file on publisher ↗

Most recently published release

1.2.0-alpha.0alpha24 Sept 2026

MailBox-1.2.0-alpha.0.jar · 1.2 MB · for 26.3, 26.2, 26.1.2, 26.1.1, 26.1 +6 more · Paper, Folia, Purpur

Choose file on publisher ↗
f8a4d05165c0…
Older versions23
  • 1.1.06 Jul 202626.2, 26.1.2, 26.1.1, 26.1, 1.21.11 +5 more0.4 MB151 downloads58706a98ad56…Choose file on publisher ↗
  • 1.1.0-beta.111 May 202626.1.2, 26.1.1, 26.1, 1.21.11, 1.21.10 +4 more0.4 MB95 downloads7e6340bac6be…Choose file on publisher ↗
  • 1.1.0-beta.020 Apr 202626.1.2, 26.1.1, 26.1, 1.21.11, 1.21.10 +4 more0.4 MB41 downloadsdc125a06f099…Choose file on publisher ↗
  • 1.1.0-alpha.1120 Apr 202626.1.2, 26.1.1, 26.1, 1.21.11, 1.21.10 +4 more0.4 MB15 downloads7c45f5ebd37c…Choose file on publisher ↗
  • 1.1.0-alpha.6+build.912 Apr 202626.1.2, 26.1.1, 26.1, 1.21.11, 1.21.10 +4 more0.4 MB32 downloads4a497afa43f9…Choose file on publisher ↗
  • 1.1.0-alpha.35 Mar 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +1 more0.3 MB40 downloads74a08770da9b…Choose file on publisher ↗
  • 1.1.0-alpha.25 Mar 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +1 more0.3 MB14 downloads462f26d65169…Choose file on publisher ↗
  • 1.0.112 Nov 20251.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +1 more0.3 MB842 downloadsedaa88f9a8b4…Choose file on publisher ↗
  • 1.0.03 Aug 20251.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.60.3 MB157 downloadsf7df344e1137…Choose file on publisher ↗
  • 1.0.0-rc.32 Aug 20251.21.8, 1.21.7, 1.21.60.4 MB49 downloads6238ac9312f2…Get
  • 1.0.0-rc.22 Aug 20251.21.8, 1.21.7, 1.21.60.4 MB50 downloads23fe6bcb57a0…Get
  • 1.0.0-rc.11 Aug 20251.21.8, 1.21.7, 1.21.60.4 MB49 downloads0ea320f3fc5a…Get
  • 1.0.0-beta.831 Jul 20251.21.8, 1.21.7, 1.21.60.3 MB58 downloads44cdf8dcdfe3…Get
  • 1.0.0-beta.724 Jul 20251.21.8, 1.21.7, 1.21.60.3 MB55 downloads832d7a05f69e…Get
  • 1.0.0-beta.624 Jul 20251.21.8, 1.21.7, 1.21.60.3 MB48 downloads43935a3dd284…Get
  • 1.0.0-beta.521 Jul 20251.21.8, 1.21.7, 1.21.60.3 MB55 downloads2e833db94135…Get
  • 1.0.0-beta.419 Mar 20251.21.42.6 MB129 downloads531658d8f072…Get
  • 1.0.0-beta.321 Feb 20251.21.42.6 MB72 downloads723e48d18c3d…Get
  • 1.0.0-beta.221 Feb 20251.21.42.6 MB71 downloads02ce971a3758…Get
  • 1.0.0-beta.121 Feb 20251.21.42.6 MB61 downloads219070a010d3…Get
  • 1.0.0-alpha.119 Feb 20251.21.42.6 MB57 downloadseb95d4583465…Get
  • 0.1.19 Sept 20241.21.1, 1.2172 KB147 downloads1a564c3b0a3f…Get
  • 0.1.09 Aug 20241.2172 KB90 downloads3a48d988ac0e…Get

Frequently asked

Does MailBox work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version MailBox 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 MailBox support?

Everything the author has declared, from 1.21 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install MailBox on the client or the server?

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

Which platform or loader does MailBox support?

Purpur, Paper, Folia. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for MailBox?

Among the supported Minecraft releases above, the highest recorded requirement is Java 25 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is MailBox under?

LGPL-3.0-only, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install MailBox?

Choose the release variant for your server platform. Paper, Spigot, Purpur and Bukkit files go in the server's plugins folder; Fabric, Forge, NeoForge and Quilt files go in the mods folder. Restart after installing and check that the Minecraft version matches your server.

Where do I download MailBox safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

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

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Details from Modrinth, where the author last updated it on 24 Sept 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .