A complete GUI-based mail system for Minecraft servers with physical mailboxes, letters, packages, Cash-On-Delivery, package experience, money mail, Post Office boxes, NPC support, offline delivery, admin tools, and YAML/SQLite/MySQL storage.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.18.2, 1.19, 1.19.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as MailboxGUI-6.0.0.jar — drop this file into the mods folder
- Download size: 2.8 MB
- Download link checked 10 Sept 2026 — working
These come from our own check of the pack file, not from the source page.