fix: fewer ipr bounce alerts (#7553)

ietf/ipr/tests.py

@@ -789,12 +789,7 @@ Subject: test
         
         mock_process_response_email.side_effect = None
         mock_process_response_email.return_value = None  # rejected message
-        with self.assertRaises(EmailIngestionError) as context:
-            ingest_response_email(message)
-        self.assertIsNone(context.exception.email_recipients)  # default recipients
-        self.assertIsNotNone(context.exception.email_body)  # body set
-        self.assertIsNotNone(context.exception.email_original_message)  # original message attached
-        self.assertEqual(context.exception.email_attach_traceback, True)
+        ingest_response_email(message)  # should _not_ send an exception email on a clean rejection
         self.assertTrue(mock_process_response_email.called)
         self.assertEqual(mock_process_response_email.call_args, mock.call(message))
         mock_process_response_email.reset_mock()

ietf/ipr/utils.py

@@ -92,7 +92,7 @@ def generate_draft_recursive_txt():
 def ingest_response_email(message: bytes):
     from ietf.api.views import EmailIngestionError  # avoid circular import
     try:
-        result = process_response_email(message)
+        process_response_email(message)
     except Exception as err:
         raise EmailIngestionError(
             "Datatracker IPR email ingestion error",
@@ -104,15 +104,3 @@ def ingest_response_email(message: bytes):
             email_original_message=message,
             email_attach_traceback=True,
         ) from err
-    
-    if result is None:
-        raise EmailIngestionError(
-            "Datatracker IPR email ingestion rejected",
-            email_body=dedent("""\
-            A message was rejected while ingesting IPR email into the Datatracker. The original message is attached.
-
-            {error_summary}
-            """),
-            email_original_message=message,
-            email_attach_traceback=True,
-        )