If supported by the client, the Jabber server can filter messages based on various criteria before they are even sent to a client. This page contains the following filtering options :

- Maximum filter rules
  The maximum number of filter rules that a single user can set up on the server.

- Allowed filter conditions
  The conditions that a client can make use of in filter rules.

- Allowed filter actions
  The actions that a client can make use of in filter rules.