On Wed, 10 Jul 2019 18:11:58 +0100 Paul Stead wrote: Your headers had:
X-Spam-Status: ... PDS_NO_HELO_DNS ... Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) by mx1-he-de.apache.org (ASF Mail Server at mx1-he-de.apache.org) with ESMTPS id E26387F4F0 for <users@spamassassin.apache.org>; Wed, 10 Jul 2019 17:12:16 +0000 (UTC) There's a problem here that __HELO_RECORD looks to be only checking IPv4. The HELO has an AAAA record.