From 8cab80fc08663cd958d902582249cf2daa5333b4 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Tue, 15 Oct 2024 10:41:19 +0100
Subject: [PATCH 1/2] Include the destination in the error of 'Destination
 mismatch'

---
 synapse/federation/transport/server/_base.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/synapse/federation/transport/server/_base.py b/synapse/federation/transport/server/_base.py
index 9094201da00..cba309635b7 100644
--- a/synapse/federation/transport/server/_base.py
+++ b/synapse/federation/transport/server/_base.py
@@ -113,7 +113,7 @@ async def authenticate_request(
                 ):
                     raise AuthenticationError(
                         HTTPStatus.UNAUTHORIZED,
-                        "Destination mismatch in auth header",
+                        f"Destination mismatch in auth header, received: {destination!r}",
                         Codes.UNAUTHORIZED,
                     )
         if (

From a83757e502e299d39c9eb8d5bef420457f9d7eed Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Tue, 15 Oct 2024 10:42:54 +0100
Subject: [PATCH 2/2] Newsfile

---
 changelog.d/17830.misc | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog.d/17830.misc

diff --git a/changelog.d/17830.misc b/changelog.d/17830.misc
new file mode 100644
index 00000000000..b2cd91c0ad0
--- /dev/null
+++ b/changelog.d/17830.misc
@@ -0,0 +1 @@
+Include the destination in the error of 'Destination mismatch' on federation requests.