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Mails

MailBox is a premium GUI mail plugin for Minecraft servers with offline/online mail, important staff mail, paginated GUIs, PlaceholderAPI support, permission-based limits, async SQLite/MySQL storage, and full Paper support.
by PrabhatPie
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Updated Jun 30, 2026
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✉️ MailBox

Advanced Player Mail System

By PrabhatPie

MailBox is a premium GUI mail plugin for Paper/Spigot servers with offline & online mail support, important staff mails, PlaceholderAPI support, async database handling, and fully configurable GUIs.

Perfect for SMP, Survival, RPG, Economy, and Community servers.


🌟 Features

📬 Mail System

  • Send mails to online & offline players
  • Incoming, Sent & Important mail categories
  • Persistent mail IDs
  • Read/unread tracking
  • Delete mails individually or all at once
  • Pagination support

🖥️ GUI Features

  • /mails GUI
  • Incoming Mail GUI
  • Sent Mail GUI
  • Important Mail GUI
  • Read Mail GUI
  • Remaining Mail Limits button
  • Fully configurable GUI items & slots

⚡ Performance

  • Fully async operations
  • SQLite support
  • Optional MySQL support
  • HikariCP connection pooling
  • Thread-safe systems
  • Optimized for large servers

🔐 Permission-Based Limits

Examples

  • mails.hour.5
  • mails.hour.25
  • mails.day.10
  • mails.day.50

The plugin automatically detects the highest permission value.

Example

If a player has:

  • mails.hour.5
  • mails.hour.15

Final limit:

  • 15 mails/hour

⭐ Important Mail System

Commands

  • /mail important <player> <message>
  • /mail imp <player> <message>

Features

  • Important Mail category
  • Glow effects
  • Sounds
  • Optional undeletable mails
  • Join notifications

🔔 Join Notifications

Examples

  • You have 3 new mails! Check with /mails
  • You have IMPORTANT mail waiting! Check /mails

Supports

  • Chat
  • Actionbar
  • Titles

📊 PlaceholderAPI

Placeholder Description
%mailbox_unread% Unread mails
%mailbox_total% Total mails
%mailbox_important% Important mails
%mailbox_sent% Sent mails
%mailbox_limit% Current mail limit
%mailbox_remaining% Remaining mails

📜 Commands

Command Description
/mail &amp;amp;lt;player&amp;amp;gt; &amp;amp;lt;message&amp;amp;gt; Send normal mail
/mail important &amp;amp;lt;player&amp;amp;gt; &amp;amp;lt;message&amp;amp;gt; Send important mail
/mail imp &amp;amp;lt;player&amp;amp;gt; &amp;amp;lt;message&amp;amp;gt; Important mail alias
/mails Open mailbox GUI
/mail delete &amp;amp;lt;id&amp;amp;gt; Delete mail by ID
/mail reload Reload configs
/mail clear &amp;amp;lt;player&amp;amp;gt; Clear player mailbox

🔑 Permissions

Default Permissions

Permission Description Default
mail.admin Unlimited mails & admin commands OP
mail.important Send important mails OP

Hourly Permissions

  • mails.hour.1
  • mails.hour.2
  • mails.hour.3
  • mails.hour.50

Daily Permissions

  • mails.day.1
  • mails.day.2
  • mails.day.3
  • mails.day.50

⚙️ Configurable

  • GUI items
  • GUI titles
  • Messages
  • Sounds
  • Limits
  • Cooldowns
  • Mail expiration
  • Important mail settings
  • Placeholder formatting

💾 Database Features

Tables

Table Purpose
mails Stores all player mails
mail_limits Stores player limit data
mail_meta Stores metadata like last mail ID

Features

  • Persistent IDs
  • Restart-safe storage
  • Soft-delete system
  • Auto cleanup
  • Async-safe queries

🧠 Why Use MailBox?

Feature Benefit
GUI Mail System Easy player experience
Offline Messaging Players never miss messages
Async Database No server lag
PlaceholderAPI Great for scoreboards & menus
SQLite & MySQL Flexible storage
Pagination Handles large inboxes
Important Mail Staff announcements
Configurable GUIs Match your server style

🛠️ Compatibility

Software Supported
Paper
Spigot
Purpur

Minecraft Version

  • 1.21+

📦 Dependencies

Plugin Required
PlaceholderAPI Optional

❤️ Perfect For

  • SMP Servers
  • Survival Servers
  • RPG Servers
  • Economy Servers
  • Towny Servers
  • Factions Servers
  • Large Networks

👨‍💻 Author

PrabhatPie

Premium-quality Minecraft plugin developer.

MailBox-1.0.0-shaded (1).jar
MC 1.21.2, 1.21, 1.21.3, 1.21.8, 1.21.4, 1.21.5, 1.21.7, 1.21.1, 1.21.6, 1.21.9, 1.21.10, 1.21.11
Release 2026-05-12 Get

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