Envelope

Envelope

Letters. Packages. And Pigeons to deliver them across the world.

by
84.2K Downloads
fabricneoforgeadventurestorageutility
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Screenshots

Letter
Packing
Mailbox
JEI Mailing Recipes
Collapsed Mail Hub
Collapsed Mail Hub

About this Mod


Envelope

Pigeon Mail

Letters, Packages, Deliveries and more...



Pigeon

Items

Delivery

Payback

Service

Charred Pigeon

Structures

Construction

Description in text form

Pigeon

Friendly creature, that can be found in mountain areas or near a village

  • Likes seeds of various kind, and will happily follow someone if they have some
  • Hunted by Wild Cats, Ocelots and Foxes

Pigeonhole

A cozy house for pigeons to rest inside of, and leave their, ehm... “byproducts”

Letter

Good alternative to a book, if you don’t have much to say
Just keep it away from foxes...

Package

Slightly inconvenient (but pretty cheap) way to reduce inventory clutter
Convenient for deliveries, though

Sealing

A way to ensure an author and integrity of a Letter or Package

Mailbox

Entrypoint into the fascinating world of mail delivery
  • Every Mailbox in the overworld must have an address
  • Connecting a Mailbox to the mail network costs 3 experience levels
  • Stores received mail
  • Allows sending mail

Address Tag

  • Use the item to open Address Selection GUI
    • All available addresses are shown
  • Use on a mailable item in GUI to set the recipient
  • Can be used on a Mailbox to change its address

Delivery

When mail and seeds are inserted into a Mailbox, its front hatch will open, allowing nearby Pigeons to pick mail up and start a delivery
  • Pigeons can deliver mail (and return to) unloaded chunks without issues
  • Delivering Pigeons ascend high above the clouds to make traveling long distances more efficient, thus they can only be seen while nearby a Mailbox

Payback Tag

  • Used on a mailable item to set the requested payback
  • Anything that fits in the Package can be requested

Allows for a safe trade of items:

  • Transaction will be handled by Mail Service
  • Buyer receives Payback Box for the payment
  • Mail will be kept in storage untill the buyer pays for it
  • If buyer does not pay in time - mail will be returned back to sender

Services

Virtual addresses that can receive mail and perform various actions
  • Includes mail crafting system and recipes
  • Extendable by datapacks, addons or KubeJS scripts

Charred Pigeon

Hostile mob found in the Nether - Has 1 in 5 chance to spawn carrying a Package - Will transform back into a regular Pigeon when brought into the overworld

Collapsed Mail Hub

Structure floating above clouds

Dovecote

Small structure built to house pigeons - Plains, Taiga, Savanna and Desert variants



The mod is not finished yet, but close

Currently planned features include:

General polishing

Exposure integration


Feedback needed!

Cool ideas and suggestions are always welcome! Especially if they are clearly presented and well argued.

Or maybe something is not right? Let me know through github, discord or dms.



Discord Server

Enjoying the mod? Your support would allow me to continue working on it and on other mods!

Patreon PayPal

Available Versions

Envelope - 0.7.5release
MC 1.21.1neoforge
August 15, 2026
Envelope - 0.7.5release
MC 1.21.1fabric
August 15, 2026
Envelope - 0.7.4release
MC 1.21.1fabric
August 10, 2026
Envelope - 0.7.4release
MC 1.21.1neoforge
August 10, 2026
Envelope - 0.7.3release
MC 1.21.1neoforge
August 8, 2026

How to Install Envelope on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "Envelope". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricneoforge

Minecraft Versions

1.21.1

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Envelope server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Envelope compatible with fabric and neoforge?

Envelope officially supports fabric, neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Envelope – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Envelope consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Envelope with just one click on your server.

Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
GNU General Public License v3.0 only
Server-side
Required

Supported Versions

1.21.1