What is DMARC?
DMARC (Domain-based Message Authentication, Reporting & Conformance) is a DNS policy that builds on SPF and DKIM. It tells receiving servers what to do with mail that fails authentication — monitor, quarantine, or reject — and sends you reports on who is sending email using your domain, protecting you from spoofing and improving inbox placement.
DMARC policies explained
A DMARC record sets a policy of none (monitor only), quarantine (send to spam), or reject (block). Most senders start at none to gather reports, then tighten to quarantine or reject once SPF and DKIM are aligned. Look up your current policy with the deliverability checker.
See deliverability tools
Want to see DMARC working in practice?
See how Keres puts it to work for your vertical and workflow.
SPF (Sender Policy Framework)
SPF (Sender Policy Framework) is a DNS record that specifies which mail servers are authorized to send email on behalf o…
DKIM (DomainKeys Identified Mail)
DKIM (DomainKeys Identified Mail) is an email-authentication method that adds a cryptographic signature to every message…
Email Deliverability
Email deliverability is the measure of whether your emails actually reach recipients’ primary inboxes rather than the sp…
Questions
DMARC — FAQ
Do I need DMARC to send cold email?
Increasingly, yes — major providers like Google and Yahoo now require SPF, DKIM, and DMARC for bulk senders, and proper DMARC improves trust and inbox placement.
See how Sol runs outbound email
Book a free 30-minute call to go through your sending domains, your list and what Sol would send for you.
Get DMARC set up for you