MailboxGUI 6.1.0

Customizable Mailboxes, Messages, and Localized Commands

New Features

• Added optional messages to packages, COD packages, and money mail through player composition, admin tools, commands, scheduled mail, and the API.
• Added optional gui.yml customization for GUI controls, mail appearances, recipient icons, and floating new-mail notification items.
• Added optional ItemsAdder integration for custom GUI appearances, with built-in icon fallbacks.
• Added resource-pack appearance preferences through /mb settings resourcepack on|off|auto.
• Expanded package composition and management to 28 content slots.
• Added Brazilian Portuguese, bringing language support to 16 languages.
• Added localized command syntax, help, and tab completion. English commands remain available.
• Added compact HEX colors and supported visual MiniMessage formatting.
• Added separate paper-letter and book-letter sending settings.
• Added customizable book information pages with built-in Reply and Back controls.

Improvements and Fixes

• Improved custom item metadata preservation in packages and item templates.
• Improved package, COD, and money-message preservation through storage, reloads, delivery, and returns.
• Improved live inbox refreshes, package management, and claim checks.
• Added an administrator Shift-Right-Click package deletion action.
• Improved message wrapping, manual line breaks, and notification formatting.
• Improved delayed delivery, scheduled-mail handling, and storage upgrades.
• Improved configuration synchronization while preserving customized settings and language files.
• Expanded public APIs and PlaceholderAPI integration.
• Renamed Post Office terminology to Public Access Mailboxes and Public Access NPCs, preserving existing registrations.
• Integrated optional DiscBridge controls under /mb settings discord and /mba discord.

Upgrade Notes

• Back up the complete MailboxGUI folder and database before updating.
• Keep existing configuration, language, and data files so upgrade handling can preserve your customizations.
• MailboxGUI 5.1.1 and older are no longer supported. Update to 6.1.0 before requesting support.
• GUI customization is disabled by default. Enable gui-customization.enabled, then run /mba reload to generate and load gui.yml.
• Set locale.command-syntax.default before startup. Changing registered command syntax requires a server restart.
• Optional Discord integration requires the matching DiscBridge 2.1.0 edition and DiscordSRV.