This could potentially be associated with [1] and [2], but it does not regard import21. When mails are released or otherwise archived I get an Internal Server Error regarding "ValueError: A string literal cannot contain NUL (0x00) characters." in the web/mailmanweb.log, but unlike importing corrupted archives, this is mails coming from the users in the daily life.

Would it be possible for Mailman to check for NUL characters and skip those before archiving?

ERROR 2018-03-13 10:38:12,602 39 django.request Internal Server Error: /hyperkitty/api/mailman/archive Traceback (most recent call last): File "/usr/local/lib/python2.7/site-packages/django/core/handlers/exception.py", line 39, in inner response = get_response(request) File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 249, in _legacy_get_response response = self._get_response(request) File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 187, in _get_response response = self.process_exception_by_middleware(e, request) File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 185, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/usr/local/lib/python2.7/site-packages/hyperkitty/views/mailman.py", line 68, in _decorator return func(request, *args, **kwargs) File "/usr/local/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view return view_func(*args, **kwargs) File "/usr/local/lib/python2.7/site-packages/hyperkitty/views/mailman.py", line 114, in archive add_to_list(mlist_fqdn, msg) File "/usr/local/lib/python2.7/site-packages/hyperkitty/lib/incoming.py", line 149, in add_to_list email.save() File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 796, in save force_update=force_update, update_fields=update_fields) File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 824, in save_base updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields) File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 908, in _save_table result = self._do_insert(cls._base_manager, using, fields, update_pk, raw) File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 947, in _do_insert using=using, raw=raw) File "/usr/local/lib/python2.7/site-packages/django/db/models/manager.py", line 85, in manager_method return getattr(self.get_queryset(), name)(*args, **kwargs) File "/usr/local/lib/python2.7/site-packages/django/db/models/query.py", line 1043, in _insert return query.get_compiler(using=using).execute_sql(return_id) File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 1054, in execute_sql cursor.execute(sql, params) File "/usr/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute return self.cursor.execute(sql, params) ValueError: A string literal cannot contain NUL (0x00) characters.

[1] https://gitlab.com/mailman/hyperkitty/issues/155 [2] https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/thread/B....