* `banner_upload_limit`: File size limit of user’s profile banners
* `registrations_open`: Enable registrations for anyone, invitations can be enabled when false.
* `invites_enabled`: Enable user invitations for admins (depends on `registrations_open: false`).
+* `account_activation_required`: Require users to confirm their emails before signing in.
* `federating`: Enable federation with other instances
* `allow_relay`: Enable Pleroma’s Relay, which makes it possible to follow a whole instance
* `rewrite_policy`: Message Rewrite Policy, either one or a list. Here are the ones available by default:
* `allow_followersonly`: whether to allow followers-only posts
* `allow_direct`: whether to allow direct messages
+## :mrf_hellthread
+* `threshold`: Number of mentioned users after which the message gets discarded as spam
+
## :media_proxy
* `enabled`: Enables proxying of remote media to the instance’s proxy
* `base_url`: The base URL to access a user-uploaded file. Useful when you want to proxy the media files via another host/CDN fronts.