
ModsJava
BlockMessage
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

BlockMessage
BlockMessage is a simple Velocity plugin for temporarily blocking player connections during server maintenance or emergencies. It allows you to restrict server access with a single command, displaying custom messages to players in both the server list (MOTD) and upon connection attempts.
Features
- Command-Based Blocking: Toggle connection blocking on and off in real-time with the /block <on|off> command, no server restart required.
- Custom Kick Message: Fully customize the message shown to blocked players in config.yml. Multi-line messages and color codes are supported.
- Custom MOTD: Change the MOTD (server description), version name, and player count displayed in the server list while blocking is active. This makes it easy to inform players about maintenance at a glance.
- Permission Control: Restrict command usage to administrators with the blockmessage.command.admin permission.
- Persistent Settings: The plugin's state is saved in config.yml, so your settings will be maintained even after restarting Velocity.
The plugins/blockmessage/config.yml file is generated on the first startup.
# =================================================================
# BlockMessage Plugin Configuration (Default Profile Template)
# This file will be copied to profiles/default.yml if it doesn't exist.
# =================================================================
# Enable or disable the entire plugin for this profile.
# If false, no players will be blocked and the MOTD will not be changed when this profile is active.
enabled: true
# The message displayed to players when they are blocked from joining.
# This is a list of strings, where each string represents a new line.
# You can use '&' for color codes.
block-message:
- "&cThis server is currently in maintenance mode."
- "&ePlease try again later."
# Configuration for the custom MOTD (Message of the Day) shown in the server list.
block-motd:
# Enable or disable the custom MOTD when the plugin is enabled in this profile.
enabled: true
# The first line of the MOTD.
line1: "&cServer is in Maintenance"
# The second line of the MOTD.
line2: "&eWe will be back soon!"
# The maximum player count to display. Set to -1 to use the server's default from bungee config.
max-players: 0 # Set to 0 to override Bungee default and show 'Maintenance' count
# The online player count to display. Set to -1 to use the server's default from bungee config.
online-players: 0 # Set to 0 to override Bungee default and show 'Maintenance' count
# Players in this list will not be blocked, even if the plugin is enabled in this profile.
# This is useful for allowing admins to join during maintenance.
# Names are case-insensitive during checks, but stored as entered.
whitelist:
- "AdminPlayer1"
- "AnotherAdmin"
Color Codes&0 Black
&1 Dark Blue
&2 Dark Green
&3 Dark Aqua
&4 Dark Red
&5 Purple
&6 Gold
&7 Gray
&8 Dark Gray
&9 Blue
&a Green
&b Aqua
&c Red
&d Pink
&e Yellow
&f White
Formatting Codes&k Obfuscated (scrambled text)
&l Bold
&m Strikethrough
&n Underline
&o Italic
&r Reset Formatting
Installation
- Download the latest .jar file from the Releases page.
- Place the downloaded .jar file into your Velocity server's plugins folder.
- Start or restart your Velocity server.
- Edit the plugins/blockmessage/config.yml file as needed.
© 2025 MichiJP. All Rights Reserved.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20, 1.20.1, 1.20.2
- 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 BlockMessage-1.3.jar — drop this file into the mods folder
- Download size: 1004 KB
- Download link checked 7 Sept 2026 — working
These come from our own check of the pack file, not from the source page.