Can you clarify regarding no way to kick it back to them? My understanding was that they operate typical feedback loops per RFC 6449 (though I haven&#x27;t personally verified this).<p>They also host a spam FAQ which has a link to a form to submit spam reports: <a href="https:&#x2F;&#x2F;help.yahoo.com&#x2F;kb&#x2F;SLN3402.html" rel="nofollow">https:&#x2F;&#x2F;help.yahoo.com&#x2F;kb&#x2F;SLN3402.html</a>