I'm in Canada, but I don't think that's it. - Docker Newsletter: `List-Unsubscribe: <mailto:redacted@unsub-sj.mktomail.com>` - but missing http post/one-click

I'm in Canada, but I don't think that's it. - Docker Newsletter: `List-Unsubscribe: <mailto:redacted@unsub-sj.mktomail.com>` - but missing http post/one-click header - Java Weekly: link in body but no header Expensify: compliant - Gradle: compliant - Confluence Digest: No unsubscribe header - Apache Mailing Lists: mailto header, but missing required http post / one-click I think the confusion is that it's not just having a link, it's a specific set of headers, dkim signed fields, and form response that allows a mail client to unsubscribe with no user interaction.