We send email (AR Statements) to customers through our CDK Global dealer management software. Recently, about half of the emails are failing, while the other half are delivered/received successfully. According to the email header SPF passes but DMARC fails. This contradicts dmarcian’s domain checkers which indicate that DMARC is valid but that we don’t have an SPF record… this is confusing to me because we do have an SPF record and as such I am having difficulty determining where the problem is. Any suggestions would be most welcome. Thank you.
Subject: Delivery Status Notification (Failure)
SPF: PASS with IP 184.108.40.206 Learn more
DMARC: ‘FAIL’ Learn more
ARC-Authentication-Results: i=1; mx.google.cxm;
spf=pass (google.com: best guess record for domain of
email@example.com designates 220.127.116.11 as permitted
dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=cdk.cxm
(domains edited by me so they aren’t links…)
Your domain has a valid DMARC record and your DMARC policy will prevent abuse of your domain by phishers and spammers.
Your domain does not have a SPF record.
Your DKIM record is valid.