On Thursday, May 5, 2016, Christopher Browne <cbbrowne@gmail.com> wrote:
We've had some issues with handling email coming from Yahoo! that seems to relate to some anti-spam mechanisms.
Hopefully someone will find this interesting. I solved **The Great Unsubscribe Event of 2016** by adding ALLOW_FROM_IS_LIST = Yes the penguin's mm_cfg.py file. It's a new option available in Mailman version 2.1.16 that doesn't require that annoying Reply-To workaround. You can read more over on Mailman's documentation: < https://wiki.list.org/DOC/What%20can%20I%20do%20about%20members%20being%20unsubscribed%20by%20bounces%20of%20Yahoo%20user's%20posts%20for%20DMARC%20policy%20reasons%3F> (sorry that links probably not going to work as it's impossible to share with all those spaces). I also subscribe to the mailing list with my Yahoo email address so I can prevent this stuff faster. -- Myles Braithwaite | http://mylesb.ca/e