I'll give up marking them up. Will leave 'em alone until it's sorted.
I should have learnt by now, and looked at the headers (just did after reading your post!) - could have, would have, should have, ... but didn't 😉
dmarc=fail header.from=virginmedia.co.uk (p=quarantine sp=quarantine dis=quarantine);
X-Spam-Action: folder Spam
Ah well ... know to look if it happens again.
In case you're interested.
The X-Headers only tell part of the story.
The authentication results headers tell you more:
Here's the results of one sent to Google
dkim=pass email@example.com header.s=s1 header.b=Wmvpb0kz;
dkim=pass firstname.lastname@example.org header.s=smtpapi header.b="nFjgQT/a";
spf=pass (google.com: domain of email@example.com designates 188.8.131.52 as permitted sender) smtp.mailfrom="firstname.lastname@example.org";
dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=QUARANTINE) header.from=virginmedia.co.uk
For DMARC to pass:
Either DKIM or SPF has to pass - BUTThe domains in the SPF and DKIM checks MUST be aligned with the domain in the From: header.
The From: address ends in virginmedia.co.ukThe SPF and DKIM checks are done against khoros-mail.com as well as a sendgrid.info DKIM header.
Therefore both SPF and DKIM ultimately fail the alignment check - hence the DMARC fail.
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Thanks again Tim 🙂 .... and yes, I was interested to know 👍