Merge e3744b1dee into 2192bfa996

content/server-server-api.md

@@ -1502,12 +1502,6 @@ The signatures expected on an event are:
     Other room versions do not track the `event_id` over federation and
     therefore do not need a signature from those servers.
 
-Only signatures from known server keys are validated here, any unknown keys are ignored.
-In particular, the [policy server key](#validating-policy-server-signatures) is not
-expected to be published and therefore should be skipped at this stage.
-Additionally, any keys that are known to have expired prior to the event's
-`origin_server_ts` are ignored.
-
 If all signatures from known keys are found to be valid, the expected content hash is
 calculated as described below. The content hash in the `hashes` property
 of the received event is base64-decoded, and the two are compared for