diff --git a/zerver/tests/test_push_notifications.py b/zerver/tests/test_push_notifications.py
index 4091d51060..49d85436ba 100644
--- a/zerver/tests/test_push_notifications.py
+++ b/zerver/tests/test_push_notifications.py
@@ -5239,7 +5239,7 @@ class PushBouncerSignupTest(ZulipTestCase):
 
         request["contact_email"] = "admin@example.com"
         result = self.client_post("/api/v1/remotes/server/register", request)
-        self.assert_json_error(result, "Invalid address.")
+        self.assert_json_error(result, "Invalid email address.")
 
         # An example disposable domain.
         request["contact_email"] = "admin@mailnator.com"
diff --git a/zilencer/views.py b/zilencer/views.py
index d2789ef59f..def17306c1 100644
--- a/zilencer/views.py
+++ b/zilencer/views.py
@@ -167,7 +167,7 @@ def register_remote_server(
 
     contact_email_domain = Address(addr_spec=contact_email).domain.lower()
     if contact_email_domain == "example.com":
-        raise JsonableError(_("Invalid address."))
+        raise JsonableError(_("Invalid email address."))
 
     # Check if the domain has an MX record
     try: