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Getting started with Matrix

Registration of new Matrix accounts has been closed for the foreseeable future. This information remains here for historical reference only. Here's how to get started on the 4d2.org Matrix homeserver....

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How do I report a problem Matrix user?

If the user is on another Matrix server, or is merely being obnoxious to you, your best option is simply to block or ignore that user. You can also use the report button in your Matrix client to bring...

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What Matrix bridges are available?

Matrix supports bridging messages between Matrix rooms and third-party messaging platforms. A complete list of bridges that we host and support is in our Matrix Quick Start Guide. It's important to re...

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What limits apply to the Matrix service?

Note: This article discusses technical limits, like file size limits, data retention periods, and rate limits. If you're looking for information about what is and isn't allowed on our Matrix server, p...

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How do I add a Matrix room to a space? Can I move a room from one space to another?

A space is just a special room that serves as a container for other rooms, so a room can belong to any number of spaces. If you are an administrator or owner of the space, you can change the rooms lis...

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What is Super Fun Happy Bot? How do I interact with it?

Super Fun Happy Bot (@bot.maubot:4d2.org) is our local instance of Maubot, a multi-purpose bot for Matrix rooms. Super Fun Happy Bot can be invited to any room, which it will then join and begin respo...

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Using ntfy with Android Matrix clients

Some Android Matrix clients -- in particular Element and SchildiChat -- support push notifications being delivered through ntfy instead of Google's Firebase Cloud Messaging, which is the default way t...

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I'm trying to register an account, but see "ERROR: Invalid domain for site key" where I should see a CAPTCHA.

This happens because you're registering an account through a client other than our hosted instance of Element at https://element.4d2.org. Please check our Getting Started Guide, because it covers this...

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Why was I banned from a Matrix room? What can I do now?

If you were banned from one of the Matrix rooms within the 4d2.org Space by a server admin, room admin or room moderator, a reason will be included with your ban and visible in your client. Matrix doe...

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