GalaxyByne's Mailboxes

GalaxyByne's Mailboxes

A simple to use, multiplayer friendly mailbox datapack using addresses as recipients.

by
8.6K Downloads
datapackfabricforgeneoforgequiltsocialtransportationutility
Rent Server with this Mod

Screenshots

Galaxy's Mailboxes Banner
Postbox
Your typical mailbox

About this Mod

Galaxy's Mailboxes

Postbox

Features:

  • Custom Mailboxes for Receiving Mail
  • Main Postboxes for Sending Mail
  • Multiple Mailbox Ownership
  • Custom Addresses

Usage Instructions:

Mailboxes
Mailboxes are used to receive mail

  1. Name a Paper to the Address you'd like to use
  2. Place a container, this could be:
    • Chest
    • Trapped Chest
    • Barrel
    • Shulker Boxes
    • Hopper
    • Dropper
    • Dispenser
  3. Run /trigger CreateMailbox while standing next to and looking at the container

Run /trigger RemoveMailbox while standing right next to and looking at a mailbox to remove it if it was created by you
As Administrator:
Run /function mailboxes:remove/position/int while standing right next to and looking at a mailbox to remove it
Run /function mailboxes:remove/address/int while holding a paper named the address of a mailbox to remove it


Postboxes
Postboxes are used to send mail
Run /function mailboxes:summon_postbox to place a postbox
Run /function mailboxes:remove_postbox to remove the closest Postbox within 3 blocks

  1. Interact with the Postbox to use it
  2. Interact again with the minecart to access the GUI
  3. Insert your Mail in the top slot
  4. Insert a Paper named with the recipient's address in the bottom slot
  5. Press the Send Button and your Mail will be sent in seconds!

Bugs / Questions:

Please report any bugs / suggestions / questions on the linked discord

Available Versions

Galaxy's Mailboxes 1.2.0release
MC 1.21.7, 1.21.8, 1.21.9, 1.21.10fabric, forge, neoforge, quilt
November 22, 2025
Galaxy's Mailboxes 1.2.0release
MC 1.21.7, 1.21.8, 1.21.9, 1.21.10datapack
November 22, 2025
Galaxy's Mailboxes 1.1.1 (Hotfix)release
MC 1.21, 1.21.1fabric, forge, neoforge, quilt
September 2, 2024
Galaxy's Mailboxes 1.1.1 (Hotfix)release
MC 1.21, 1.21.1datapack
September 2, 2024
Galaxy's Mailboxes 1.1.0release
MC 1.21, 1.21.1fabric, forge, neoforge, quilt
August 24, 2024

How to Install GalaxyByne's Mailboxes on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set datapack Loader

In the panel under "Egg", select the datapack loader and matching Minecraft version (1.21.10).

3

Install Mod

Open the mod browser in the dashboard and search for "GalaxyByne's Mailboxes". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

datapackfabricforgeneoforgequilt

Minecraft Versions

1.21.10, 1.21.9, 1.21.8 (+8 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

GalaxyByne's Mailboxes server crashes on startup – what to do?

Most common cause: wrong datapack version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.10). You can switch loaders with one click in the panel.

Is GalaxyByne's Mailboxes compatible with datapack and fabric and forge and neoforge and quilt?

GalaxyByne's Mailboxes officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.10, 1.21.9, 1.21.8. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with GalaxyByne's Mailboxes – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if GalaxyByne's Mailboxes consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install GalaxyByne's Mailboxes with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Required

Supported Versions

1.21.101.21.91.21.81.21.71.21.11.211.20.41.20.31.20.21.20.1+1 more