Please format it like this: [[email protected]](/c/[email protected]), example: [email protected]
This link is clickable on the Lemmy web interface, and will redirect you to the community within your own instance! It doesn’t work in the Jerboa app, I don’t know about other interfaces. Note that if your instance hasn’t had any users interact with the linked community yet, you’ll get a 404 error, and you’ll have to manually search [email protected] to federate them.
Try searching [email protected] on your instance (including the exclamation mark). You might have to click “next” on the results once or twice, but it should show up!