Authentication-Results: mail.buzon.uy; dkim=pass (2048-bit key; secure) header.d=buzon.uy header.i=@buzon.uy header.b="AyOucyBM"; dkim-atps=neutral From: To: This is actually not a realworld message, but a handwritten one. It is needed for test_realworld_authentication_results() to pass for buzon. Unfortunately, we don't know if buzon.uy actually adds Authentication-Results for emails that come from other buzon.uy accounts. So, we don't know if Authentication-Results checking works with buzon.uy.