It is easy for administrators to send messages and items to mail with players or servers. UI was created with Jetpack Compose and Material 3 through Composite mode.
Dependencies
https://modrinth.com/mod/composite https://modrinth.com/mod/pyke-lib
Commands and KeyBinding
/우편 보내기 - Open Send Mail Screen
Default Key (P) - Open MailBox
How to use
MailBoxData newMail = MailBoxData.create(String title, String senderName, String content, List<ItemStack> items);
ModComponents.MAIL_BOX.get(receiver).addMail(newMail);
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as mailbox-1.0.0.jar — drop this file into the mods folder
- Download size: 35.4 MB
- Download link checked 10 Sept 2026 — working
These come from our own check of the pack file, not from the source page.