From c2b9ac7ac0669a4585a4ecaad2f4467820bbbaf2 Mon Sep 17 00:00:00 2001
From: clokep allowed_lifetime_min
and allowed_lifetime_max
conf
which are older than the room's maximum retention period. Synapse will also
filter events received over federation so that events that should have been
purged are ignored and not stored again.
The message retention policies feature is disabled by default. Please be advised -that enabling this feature carries some risk. There are known bugs with the implementation -which can cause database corruption. Setting retention to delete older history -is less risky than deleting newer history but in general caution is advised when enabling this -experimental feature. You can read more about this feature here.
+The message retention policies feature is disabled by default. You can read more +about this feature here.
This setting has the following sub-options: