Hi again --

Besides my compress issue described earlier today here:

https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/message/...

I've been dealing with another issue (and why I upgraded to the latest code) when posting messages to my test list from our schools Office365 infrastructure (OWA). The post gets shunted; mailman.log has the following error:

Sep 11 11:29:44 2020 (31396) ACCEPT: BL0PR14MB3681E636E905E9D34588C85088240@BL0PR14MB3681.namprd14.prod.outlook.com Sep 11 11:29:45 2020 (31401) Uncaught runner exception: Syntax error: Expected "=" at: ; dmarc=none action=none header.from=o... Sep 11 11:29:45 2020 (31401) Traceback (most recent call last): File "/opt/mailman/mm/venv/lib/python3.6/site-packages/mailman/core/runner.py", line 173, in _one_iteration self._process_one_file(msg, msgdata) File "/opt/mailman/mm/venv/lib/python3.6/site-packages/mailman/core/runner.py", line 266, in _process_one_file keepqueued = self._dispose(mlist, msg, msgdata) File "/opt/mailman/mm/venv/lib/python3.6/site-packages/mailman/runners/pipeline.py", line 37, in _dispose process(mlist, msg, msgdata, pipeline) File "/opt/mailman/mm/venv/lib/python3.6/site-packages/mailman/core/pipelines.py", line 50, in process handler.process(mlist, msg, msgdata) File "/opt/mailman/mm/venv/lib/python3.6/site-packages/mailman/handlers/validate_authenticity.py", line 118, in process authenticate(msg, msgdata) File "/opt/mailman/mm/venv/lib/python3.6/site-packages/mailman/utilities/retry.py", line 44, in f_retry return f(*args, **kwargs) File "/opt/mailman/mm/venv/lib/python3.6/site-packages/mailman/handlers/validate_authenticity.py", line 85, in authenticate prev = trusted_auth_res(msg) File "/opt/mailman/mm/venv/lib/python3.6/site-packages/mailman/handlers/validate_authenticity.py", line 73, in trusted_auth_res authserv_id = AuthenticationResultsHeader.parse(header).authserv_id File "/opt/mailman/mm/venv/lib/python3.6/site-packages/authres/__init__.py", line 206, in parse return authres.core.AuthenticationResultsHeader.parse(core_features(), string) File "/opt/mailman/mm/venv/lib/python3.6/site-packages/authres/core.py", line 442, in parse return self.parse_value(feature_context, string) File "/opt/mailman/mm/venv/lib/python3.6/site-packages/authres/core.py", line 454, in parse_value header._parse() File "/opt/mailman/mm/venv/lib/python3.6/site-packages/authres/core.py", line 517, in _parse result = self._parse_resinfo() File "/opt/mailman/mm/venv/lib/python3.6/site-packages/authres/core.py", line 550, in _parse_resinfo method, version, result = self._parse_methodspec() File "/opt/mailman/mm/venv/lib/python3.6/site-packages/authres/core.py", line 573, in _parse_methodspec raise SyntaxError('Expected "="', self._parse_text) authres.core.SyntaxError: Syntax error: Expected "=" at: ; dmarc=none action=none header.from=o... Sep 11 11:29:45 2020 (31401) SHUNTING: 1599838185.4911082+9dde922f77a1d66e3511f2709ec4b436ab6a3ecc

Debugging the issue further shows this header to be the problem:

authentication-results: lists-test.rutgers.edu; dkim=none (message not signed) header.d=none;lists-test.rutgers.edu; dmarc=none action=none header.from=oit.rutgers.edu;

What is syntactically wrong with it and/or is it more than that?

Note1: If I remove that header from a copy of the message and inject directly into Mailman it will deliver as expected. Note2: Posting messages from my personal Gmail account or cmdline mail program to the same test list will also deliver as expected.

Bryan Loniewski Rutgers University OIT:EAS:Messaging and Collaboration Services System Administrator