On Mon, 2015-11-23 at 11:35 -0800, Joshua Andrews wrote:
Suddenly my message filters stopped working. I've been using "X-BeenThere:" in the message headers to filter list emails. Do I need to create new filters, has X-BeenThere been obsoleted?
This is probably to do with the mailman3 update. I'd recommend using the 'List-id' header for mailing list identification purposes; that header is actually defined in an RFC - RFC2919 - so all mailing list software should produce it.