Oops, missed an edit
diff --git a/tools/import-mbox.py b/tools/import-mbox.py
index 7b6ef8f..8dacb50 100755
--- a/tools/import-mbox.py
+++ b/tools/import-mbox.py
@@ -273,7 +273,7 @@
                     file = MboxoReader(file)
                 message_raw = file.read()
                 file.close()
-                message = archiver.parse_message(message_raw, policy=archiver.policy)
+                message = archiver.parse_message(message_raw)
                 if not message:
                     self.printid("Message %u could not be extracted from %s, ignoring it" % (key, tmpname))
                     continue