MailboxGUI downloads

Download MailboxGUI

Choose MailboxGUI Free or check your account for MailboxGUI Premium access.

Compare Free & Premium

Choose the edition that fits your setup before downloading or purchasing MailboxGUI.

Free Edition Includes

Free plugin · Single-server setup

GUI inbox, filters, pagination and mail tracking.
Physical mailbox styles, mailbox kits, Public Access Mailboxes and NPC access.
Letters, Book Letters, item packages, money mail and cash on delivery (COD).
Scheduled/delayed mail, expiration, notifications and configurable GUI layouts.
Admin sending, mass mail and Shared Admin Inbox tools.
Single-server operation. No network or multiversion backend features.

Premium Edition Includes

Paid plugin license · Premium networking

The core mailbox, delivery and administration features included in Free.
Shared mail across backend servers using MySQL/MariaDB and Redis.
Network-wide player lookup, backend profiles and server groups.
Backend/group targeting, Multiverse world support within backends and network GUI tools.
Network synchronization, remote inbox refresh and network administration.
Protected Premium downloads and update access with a valid matching license.

Multiversion Backend Support — Premium only

Minecraft Version Range: 1.18.2–1.21.11 / 26.1–26.3

Every backend must use the same server platform: all Paper, all Purpur or all Spigot. Do not mix platforms in a multiversion network.

Enable multiversion backends in the Premium network configuration. Item/data/protocol compatibility checks still apply; newer items may be restricted on older backends.

Read the Full Wiki View Products & Pricing

MailboxGUI Free

Free

Richer Mail, Custom GUIs & Expanded Localization

Release

NO NETWORK MODE — Attach messages to packages and money mail, send up to 28 item stacks, customize GUI icons, and enjoy HEX colors, gradients, localized commands, and safer upgrades.

Version: 6.1.0
Minecraft: 1.18.2 - 1.21.11 / 26.1-26.3
Java: Java 17+

Download Latest Release Notes

Older Builds

MailboxGUI Premium

Premium

Premium requires verified purchase access and includes Premium-only network features.

Richer Mail, Custom GUIs & Connected Networks

Release

Customize mail with messages, 28-slot packages, HEX colors, and localized commands. Premium adds shared network inboxes, backend targeting, multiversion claims, coordinated schedules, and network tools.

Version: 6.1.0
Minecraft: 1.18.2 - 1.21.11 / 26.1 - 26.3
Java: Java 17+

A valid MailboxGUI Premium license is required to download. Release details and notes are public.

Add to Cart Release Notes

MailboxGUI Resource Pack

Paid companion

One purchase includes bundles for MailboxGUI Free Edition and for MailboxGUI Premium Edition. The Free Edition pack includes 95 custom models; the Premium Edition pack includes 122 custom models (95 shared plus 27 Premium models). Both bundles are paid; “Free Edition” identifies the plugin edition, not a free resource-pack download.

Each download includes the resource-pack ZIP, a matching gui.yml, INSTALLATION.md, compatibility.json, resource-pack.sha1, optional edition-specific ItemsAdder import ZIP and ITEMSADDER.md, mappings.json, MAPPINGS.md, VALIDATION.json, and RESOURCE-PACK-API.md. The Premium pack includes network GUI appearances. All published pack versions and future-release support are included; a Premium plugin license is separate.

Match your edition: MailboxGUI Free must use the Free Edition pack; MailboxGUI Premium must use the Premium Edition pack. Mixing editions or installing both can break GUI configuration and appearances.

3.99 USD · One purchase, both edition bundles

View Resource Pack