SPF, DKIM and DMARC setup for SaaS founders: a 10-minute guide
SPF, DKIM and DMARC are three DNS records that prove your emails really come from your domain. For most startups the setup is short. Your email provider gives you a few CNAME records (DKIM and a return path) and you add them at your DNS host. You leave your existing root SPF record alone. You publish one DMARC record at _dmarc.yourdomain.com . Then you send a test email to a Gmail address and…
Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM) and Domain-based Message Authentication, Reporting & Conformance (DMARC) are three DNS records that confirm emails genuinely originate from your domain. For most startups, the setup is straightforward. Your email provider offers CNAME records for DKIM and a return path; you add them to your DNS host without changing your existing root SPF record.
Publishing one DMARC record at _dmarc.yourdomain.com completes the process. You then send a test email to a Gmail address and verify that SPF, DKIM and DMARC all display PASS. The whole process typically takes about ten minutes, though DNS propagation may take longer.
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