✨ Features

1. 📮 Send items to online and offline players
2. 🎒 Supports all Minecraft items (Preserves enchantments, custom names, lore, NBT data, and Shulker Box contents)
3. 🖥️ Easy-to-use GUI with Pagination Support 📑 (New) — Mailboxes now dynamically scale into multiple pages using navigation arrows if a player has too many items.
4. 🕵️ Admin Spy Mode (New) — Complete control for server staff to inspect and clean out any player's mailbox.
5. 🍀 Lucky Drops System (New) — Reward players with custom items, cash, or effects when they check their mail.
6. 🔔 Players are notified when they receive new mail upon logging in.
7. 💾 YAML-based storage — Mail persists safely through server restarts with no complex database required.
8. ⚡ Optimized for modern Paper servers.

🎮 Commands

Command	Description
/posta	Opens your personal mailbox
/posta spy <player>	Opens and manages another player's mailbox (Admin)
/senditem <player>	Sends items from your hand/GUI to a player

🔑 Permissions

Permission	Description	Default
offlinedelivery.mailbox	Allows opening your own mailbox	true
offlinedelivery.send	Allows sending deliveries to players	true
offlinedelivery.spy	Allows administrators to spy on other mailboxes	op

📬 How it works

1. Use /senditem <player>.
2. Place the items you want to send into the GUI and confirm the delivery.
3. The items are safely stored in the YAML file.
4. The recipient is notified and can collect them later using /posta.
5. If a player has lots of mail, they can flip through pages using the arrows at the bottom row.

🧩 Compatibility

• Paper 1.21.11+
• Java 21+

❤️ Why OfflineDelivery?

OfflineDelivery provides a simple, secure, and reliable way for friends to exchange items without needing to be online at the same time. Perfect for survival servers, SMPs, and private communities that want a clean mail system with built-in admin control and fun reward mechanics.