diff --git a/services/rspamd/conf/dkim_signing.conf b/services/rspamd/conf/dkim_signing.conf
index 70f7e9b4..e00e8d67 100644
--- a/services/rspamd/conf/dkim_signing.conf
+++ b/services/rspamd/conf/dkim_signing.conf
@@ -1,3 +1,4 @@
 try_fallback = true;
 path = "/dkim/$domain.$selector.key";
 use_esld = false;
+allow_username_mismatch = true;