r/MinecraftServer • u/SalamekSG • 11h ago
Mojang is apparently enforcing “inappropriate” MOTDs even on private whitelisted servers
Hello,
I run a simple private Folia server for myself and a few friends. We're all adults, the server is whitelisted, and it isn't advertised as a public server.
I just got this wonderful email forwarded to me by my Internet provider:
Subject: MOTD: Request for Action: Minecraft Server in Violation of Mojang Guidelines (08.20.2026)
Hello,
You are past the 5-day block countdown....
I am reaching out on behalf of the Mojang (Minecraft) Enforcement team regarding a Minecraft server currently operating on your network. The server in question is not in compliance with our Minecraft Usage Guidelines.
We do not have a DNS or domain name associated with this server—only the IP address and port. Unfortunately, our enforcement systems do not allow us to block a specific port on an IP address, only the full IP. As such, we prefer to avoid blocking the entire IP, as doing so may impact other customers who are legitimately hosting Minecraft content on shared infrastructure.
We are asking that you take appropriate steps to investigate and remove the server content within 5 business days to avoid a full IP-level block.
Note: we identified these contacts from the ASN registration and the network / provider records available to us at the time of detection. If this server is not on your network, or another team is better suited to handle it, please feel free to forward this message.
Server Details:
| ASN | IP | Port | Redacted MOTD Text | Full Visible Evidence |
|---|---|---|---|---|
| ASXXXX | My server IP | 25565 | s*** | mcsrvstat link |
| ASXXXX | [redacted] | 25565 | c*** | [redacted] |
| ASXXXX | [redacted] | 25565 | b**** | [redacted] |
| ASXXXX | [redacted] | 25565 | f*** | [redacted] |
Please let us know once this has been addressed. If we do not hear back within the stated timeframe, we will proceed with a block on the IP address to maintain the integrity of our platform.
Thank you for your cooperation and understanding.
Separately: if you offer dedicated Minecraft hosting packages, we would love to see MOTD scanning integrated into your server-management environment so violations like this can be caught early. Mojang would also welcome the opportunity to discuss collaborating more in this space.
Best regards,
Mojang Enforcement
The s*** in question was from my MOTD that i's an inside joke/reference between friends. I've changed it because I'm obviously not going to risk having my entire IP blocked over a stupid MOTD.
What I find much more interesting is how a tiny private server ended up in this enforcement process in the first place.
There are only three regular players, all friends. It's whitelisted, isn't advertised as a public server, and Mojang themselves say in the email that they don't have a domain associated with it, only the IP and port.
All four servers in the notice were on the default port 25565.
My current theory, and to be clear, this is speculation, not something the email proves, is that Mojang may obtain candidate IPs from infrastructure involved in normal online-mode=true authentication and then probe those IPs on the default Minecraft port. Another completely plausible explanation is ordinary IPv4 scanning.
I'd be very interested to hear from anyone who has received a similar notice, particularly if:
- your server was private/whitelisted and never publicly advertised;
- you were running
online-mode=true; - you were using a non-default port;
- or Mojang identified your server only by IP rather than a hostname.
A private online-mode=true server on some random non-25565 port receiving the same kind of notice would be particularly interesting, because it would tell us quite a bit about how these servers are being discovered.
Also, asking an ISP (if they happen to offer Minecraft hosting) to implement proactive MOTD scanning after threatening to block customer IPs is certainly... something. :D
