diff --git a/services/mailu/helmrelease.yaml b/services/mailu/helmrelease.yaml
index c8b0975..a40f047 100644
--- a/services/mailu/helmrelease.yaml
+++ b/services/mailu/helmrelease.yaml
@@ -33,8 +33,8 @@ spec:
         dkim:
           enabled: true
     externalRelay:
-      host: "[email-smtp.us-east-2.amazonaws.com]:587"
-      existingSecret: mailu-ses-relay
+      host: "[smtp.postmarkapp.com]:587"
+      existingSecret: mailu-postmark-relay
       usernameKey: relay-username
       passwordKey: relay-password
     timezone: Etc/UTC