I've found the following exception in "mailman.log":

[28/Sep/2021:11:17:18 +0000] "GET /3.1/lists/test@mm3.lavasoftware.org HTTP/1.1" 200 374 "-" "GNU Mailman REST client v3.3.3" 2021-09-28 11:17:18 [FALCON] [ERROR] GET /3.1/lists/test@mm3.lavasoftware.org/config => Traceback (most recent call last): File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 1276, in _execute_context self.dialect.do_execute( File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/default.py", line 608, in do_execute cursor.execute(statement, parameters) psycopg2.OperationalError: SSL error: sslv3 alert bad record mac

The above exception was the direct cause of the following exception:

Traceback (most recent call last): File "falcon/app.py", line 361, in falcon.app.App.__call__ File "/opt/mailman/venv/lib/python3.8/site-packages/mailman/rest/listconf.py", line 282, in on_get value = getter.get(self._mlist, attribute) File "/opt/mailman/venv/lib/python3.8/site-packages/mailman/rest/helpers.py", line 228, in get value = list(value) File "/opt/mailman/venv/lib/python3.8/site-packages/mailman/model/mailinglist.py", line 348, in filter_types for content_filter in results: File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/orm/query.py", line 3535, in __iter__ return self._execute_and_instances(context) File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/orm/query.py", line 3560, in _execute_and_instances result = conn.execute(querycontext.statement, self._params) File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 1011, in execute return meth(self, multiparams, params) File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/sql/elements.py", line 298, in _execute_on_connection return connection._execute_clauseelement(self, multiparams, params) File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 1124, in _execute_clauseelement ret = self._execute_context( File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 1316, in _execute_context self._handle_dbapi_exception( File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 1510, in _handle_dbapi_exception util.raise_( File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/util/compat.py", line 182, in raise_ raise exception File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 1276, in _execute_context self.dialect.do_execute( File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/default.py", line 608, in do_execute cursor.execute(statement, parameters) sqlalchemy.exc.OperationalError: (psycopg2.OperationalError) SSL error: sslv3 alert bad record mac

[SQL: SELECT contentfilter.id AS contentfilter_id, contentfilter.mailing_list_id AS contentfilter_mailing_list_id, contentfilter.filter_type AS contentfilter_filter_type, contentfilter.filter_pattern AS contentfilter_filter_pattern FROM contentfilter WHERE %(param_1)s = contentfilter.mailing_list_id AND contentfilter.filter_type = %(filter_type_1)s] [parameters: {'param_1': 1, 'filter_type_1': 0}] (Background on this error at: http://sqlalche.me/e/13/e3q8)

[2021-09-28 11:17:18 +0000] [2076] [ERROR] Error handling request /3.1/lists/test@mm3.lavasoftware.org/config Traceback (most recent call last): File "/opt/mailman/venv/lib/python3.8/site-packages/gunicorn/workers/sync.py", line 136, in handle self.handle_request(listener, req, client, addr) File "/opt/mailman/venv/lib/python3.8/site-packages/gunicorn/workers/sync.py", line 179, in handle_request respiter = self.wsgi(environ, resp.start_response) File "/opt/mailman/venv/lib/python3.8/site-packages/mailman/database/transaction.py", line 51, in wrapper config.db.commit() File "/opt/mailman/venv/lib/python3.8/site-packages/mailman/database/base.py", line 52, in commit self.store.commit() File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/orm/session.py", line 1046, in commit self.transaction.commit() File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/orm/session.py", line 508, in commit t[1].commit() File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 1762, in commit self._do_commit() File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 1793, in _do_commit self.connection._commit_impl() File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 773, in _commit_impl self._handle_dbapi_exception(e, None, None, None, None) File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 1514, in _handle_dbapi_exception util.raise_(exc_info[1], with_traceback=exc_info[2]) File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/util/compat.py", line 182, in raise_ raise exception File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 771, in _commit_impl self.engine.dialect.do_commit(self.connection) File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 392, in connection self._handle_dbapi_exception(e, None, None, None, None) File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 1514, in _handle_dbapi_exception util.raise_(exc_info[1], with_traceback=exc_info[2]) File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/util/compat.py", line 182, in raise_ raise exception File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 390, in connection return self._revalidate_connection() File "/opt/mailman/venv/lib/python3.8/site-packages/sqlalchemy/engine/base.py", line 469, in _revalidate_connection raise exc.InvalidRequestError( sqlalchemy.exc.InvalidRequestError: Can't reconnect until invalid transaction is rolled back

I'm happy to report it as an issue against the appropriate part on GitLab but it isn't entirely clear to me which part of the suite is causing this. I think it is Core but I'm not absolutely sure.

Philip