Add back check

relay-server/src/endpoints/common.rs

@@ -349,6 +349,13 @@ pub async fn handle_envelope(
  )
  }
 
+ // TODO(jjbayer): Remove this check once spool v1 is removed.
+ if state.memory_checker().check_memory().is_exceeded() {
+ // NOTE: Long-term, we should not reject the envelope here, but spool it to disk instead.
+ // This will be fixed with the new spool implementation.
+ return Err(BadStoreRequest::QueueFailed);
+ };
+
  let mut managed_envelope = ManagedEnvelope::new(
  envelope,
  state.outcome_aggregator().clone(),