DMARC, SPF and DKIM
DMARC builds on top of two other email authentication protocols: SPF and DKIM.
When inboxes receive an email pretending to be from your domain, they will run checks for SPF and DKIM to confirm authenticity.
DMARC is the control layer that tells them what to do when those checks fail.
Set Your DMARC Policy Right—Or Risk Letting Spoofers In
DMARC policy defines how receiving inboxes should handle messages that fail authentication checks.
You can choose from three enforcement levels:
- none – No action taken; just monitor and collect data.
- quarantine – Flag unverified emails and send them to the spam folder
- reject – Block unauthorized messages entirely from reaching the inbox
DMARC policy lives in your domain’s DNS and plays a central role in controlling how your email is evaluated and trusted.
Extra Value for Enterprises: DMARC Reporting
Best thing about DMARC is that it prompts inboxes to deliver regular reports on all emails that they receive and that claim to be from your domain.
DMARC reports act like a security camera for your domain’s email traffic, giving you a full picture of:
- Who’s sending emails using your domain
- Which servers passed or failed SPF and DKIM checks
- Where potential spoofing attempts are coming from
- Which legitimate senders might not be properly configured and are thus getting sent to Spam
DMARC offers complete visibility into your email on enterprise level—but in raw XML format, the reports are complex, technical, and hard to interpret at scale.
Our email security solution transforms all that noise into clear, visual dashboards that map your email flows, flag authentication issues, and alert you to threats in real time.
How DMARC Fits Into BIMI?
BIMI lets your logo appear in inboxes—but only if your domain proves it’s secure.
Before any branding can happen, inbox providers need assurance that your emails are authentic and your domain is protected from abuse.
DMARC is the safety layer that makes that possible.
No DMARC, no logo.
