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PostMaster

A lightweight and powerful mailbox plugin for Paper/Folia servers
by NightBeamStudio
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56 downloads
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Updated Jun 30, 2026
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PostMaster is a lightweight and powerful mailbox plugin for Paper/Folia servers.

Features

  • Offline & Online Mail: Send mail to players whether they're online or offline.
  • Custom Vouchers: Define vouchers redeemable through the mail system.
  • Configurable Storage: Support for YAML, SQLite, MySQL, and HikariCP-based connections.
  • Intuitive GUI: Built-in inventory-based interfaces for viewing mail, composing messages, and managing vouchers.
  • API & Bridge: Expose an API for other plugins and allow easy interoperability.
  • Permissions Support: Fine-grained command permissions (postmaster.use, etc.).
  • Scheduler Integration: Background tasks handle mail expiration and notification delivery.
  • Folia-friendly: Fully compatible with Paper and Folia builds.

Installation

  1. Place the JAR in your server's plugins/ folder.
  2. Restart or reload the server.
  3. Configure config.yml to choose your preferred storage and customize messages.

Configuration

The plugin ships with a sample config.yml which allows you to adjust storage settings, voucher definitions, and GUI colors. Example voucher files can be found under vouchers/example-voucher.yml.

Why PostMaster?

PostMaster offers a smooth in-game experience with minimal configuration. Its modular architecture makes it easy to extend or integrate with other plugins. Whether you're running a small survival server or a bustling network, PostMaster keeps your players connected with reliable mail delivery.

postmaster-1.0.5.jar
MC 1.20.6, 1.21.2, 1.21, 1.21.3, 1.20.2, 1.21.8, 1.20, 1.20.4, 1.20.3-Snapshot, 1.21.4, 1.20.5, 1.21.5, 1.20.1, 1.21.5-Snapshot, 1.20.3, 1.21.7, 1.21.1, 1.20.5-Snapshot, 1.21.6
Release 2026-04-04 Get
postmaster-1.0.4.jar
MC 1.20.6, 1.21.2, 1.21, 1.21.3, 1.20.2, 1.21.8, 1.20.4, 1.20.3-Snapshot, 1.21.4, 1.20.5, 1.21.5, 1.20.1, 1.21.5-Snapshot, 1.20.3, 1.21.7, 1.21.1, 1.20.5-Snapshot, 1.21.6, 1.21.9
Release 2026-03-25 Get
postmaster-1.0.3.jar
MC 1.20.6, 1.21.2, 1.21, 1.21.3, 1.20.2, 1.21.8, 1.20, 1.20.4, 1.20.3-Snapshot, 1.21.4, 1.20.5, 1.21.5, 1.20.1, 1.21.5-Snapshot, 1.20.3, 1.21.7, 1.21.1, 1.20.5-Snapshot, 1.21.6
Release 2026-03-19 Get
postmaster-1.0.2.jar
MC 1.20.6, 1.21.2, 1.21, 1.21.3, 1.20.2, 1.21.8, 1.20, 1.20.4, 1.20.3-Snapshot, 1.21.4, 1.20.5, 1.21.5, 1.20.1, 1.21.5-Snapshot, 1.20.3, 1.21.7, 1.21.1, 1.20.5-Snapshot, 1.21.6
Release 2026-03-16 Get
postmaster-1.0.1.jar
MC 1.20.6, 1.21.2, 1.21, 1.21.3, 1.20.2, 1.21.8, 1.20, 1.20.4, 1.20.3-Snapshot, 1.21.4, 1.20.5, 1.21.5, 1.20.1, 1.21.5-Snapshot, 1.20.3, 1.21.7, 1.21.1, 1.20.5-Snapshot, 1.21.6
Release 2026-03-12 Get
postmaster-1.0.0.jar
MC 1.20.6, 1.21.2, 1.21, 1.21.3, 1.20.2, 1.21.8, 1.20, 1.20.4, 1.20.3-Snapshot, 1.21.4, 1.20.5, 1.21.5, 1.20.1, 1.21.5-Snapshot, 1.20.3, 1.21.7, 1.21.1, 1.20.5-Snapshot, 1.21.6
Release 2026-03-08 Get

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