ADSP is an entry in DNS that works allows a domain owner to assert that all email must be signed with DKIM. (similar to the
~all in SPF/SenderID). Messages that fail ADSP policy may be rejected.
Apparently DKIM has a ton of issues with mailing lists.
What specific mailinglist software has issues with DKIM and therefore ADSP?
What else has an issue with DKIM and should make one reconsider deploying ADSP?