Last updated September 2026
DMARC Stack is provided for monitoring email authentication (DMARC, SPF, and DKIM) on domains you own or are authorized to manage. You agree not to add a domain you do not control, and not to use the service to interfere with another party's mail infrastructure.
Each monitored domain is billed monthly at the rate shown on the pricing page. Your free trial runs for 14 days; if you do not cancel before it ends, billing begins automatically on the payment method on file.
To generate reports, we receive and parse DMARC aggregate and forensic reports sent by mail receivers to the reporting addresses we generate for your domains. This data includes sending IP addresses, volumes, and authentication results — it does not include the contents of your email messages.
We aim for high uptime but do not guarantee uninterrupted service. Scheduled maintenance and third-party outages (DNS providers, mail receivers) may affect report delivery timing.
You may remove a domain or close your account at any time from account settings. We may suspend accounts that violate these terms or that we reasonably believe are being used to monitor domains without authorization.
We may update these terms from time to time. Continued use of the service after an update constitutes acceptance of the revised terms.