Our blog shares expert insights on email security, DMARC configuration, and deliverability optimization.
A DMARC report lists IP addresses and hostnames, not answers. Source Insights now groups those IPs into senders, gives each sender a verdict, and asks you one question per failing sender: ours, or not ours.
A DKIM selector is the s= label that tells a receiving server which public key verifies your mail. Here is the selector each major provider uses, and two ways to find yours in under a minute.
Klaviyo passes DMARC only through a branded sending domain. Add the domain in Klaviyo, publish the DNS records it generates, and verify alignment step by step.
Set up DMARC for Google Workspace: publish the _dmarc TXT record at your DNS host, start at p=none with a reporting address, and move to enforcement on report evidence.
For a decade, DMARC used a volunteer-maintained text file to find the organizational boundary for domains like news.example.co.uk. RFC 9989 replaces that lookup with a DNS tree walk. Here is what changed and what to check.
Marketing mail sent through Mailchimp, SendGrid, or Klaviyo fails DMARC by default because the ESP signs and bounces under its own domain, not yours. Here is the per-provider fix.
A protocol-grounded explanation of what a DMARC fail is, why a passing SPF or DKIM check can still fail DMARC, and how to diagnose and fix it.
Set up the SendGrid SPF record or current domain authentication records. Understand include:sendgrid.net, the return-path, and DMARC alignment.
Set up SendGrid DKIM with the account-specific s1 and s2 CNAME records, publish the complete authentication set, and verify DMARC alignment.
Set up Proofpoint DKIM for outbound mail by confirming signing support, publishing tenant-specific DNS records, and verifying DMARC alignment.
Looking for an EasyDMARC alternative? Compare DMARC monitoring tools on pricing, EU/US data residency, DNS change alerts, and sender insights. See why teams choose DMARCTrust for transparent per-domain pricing and a focused DMARC workflow.
Où publier DMARC pour un domaine .fr ou .eu, quelle politique choisir selon que le domaine envoie des e-mails ou non, et quelles erreurs éviter.
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