# Stream posting policy

{!admin-only.md!}

By default, anyone who belongs to a stream can also send messages to
the stream. However, sometimes it's useful to have a stream (often a
[default stream](/help/set-default-streams-for-new-users)) where only
certain users can send messages.

{start_tabs}

{relative|stream|all}

1. Select a stream.

1. On the right, click **[Change]** next to the description of the stream
   permissions.

1. Under "Who can post to the stream?", select the option you prefer.

1. Click **Save changes**.

{end_tabs}