From d0e52b9f5b5ed749410be6d8d6e5451f73f91512 Mon Sep 17 00:00:00 2001
From: Kegan Dougal <7190048+kegsay@users.noreply.github.com>
Date: Mon, 8 Sep 2025 15:23:40 +0100
Subject: [PATCH] Update 4243-user-localparts-as-account-keys.md

---
 proposals/4243-user-localparts-as-account-keys.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/proposals/4243-user-localparts-as-account-keys.md b/proposals/4243-user-localparts-as-account-keys.md
index ef80d9edb..eab0ac2ac 100644
--- a/proposals/4243-user-localparts-as-account-keys.md
+++ b/proposals/4243-user-localparts-as-account-keys.md
@@ -327,7 +327,8 @@ are invasive: one changes the user ID format and the other subverts the existing
 
 ### Dependencies
 
-This MSC has no dependencies.
+The MSC may depend on [MSC4284: Policy Servers](https://github.com/matrix-org/matrix-spec-proposals/pull/4284) to ensure that events sent
+by invalid domains can be moderated safely.
 
 [^1]: Because the JSON with the `account_name` and `domain` is signed, we could use transparency logs to detect when a server
 tells some people one account name and other people a different account name. In addition, it opens up the possibility of having