Welcome

DDMARC documentation.

Everything you need to set up DMARC monitoring, understand your email authentication, and integrate with the REST API.

Get started

5 min

DMARC setup

Configure DMARC records for your domain.

Reference

API reference

REST API + outbound webhooks for automation.

What is DMARC?

DMARC (Domain-based Message Authentication, Reporting & Conformance) is an email authentication protocol that protects your domain from unauthorized use. It works alongside SPF and DKIM to verify that emails are legitimately from your domain.

Publish

Add DMARC record to your DNS

Receive

Email servers check your policy

Report

Providers send aggregate reports

Analyze

Review and improve authentication

Why use DDMARC?

Automated report collection and parsing
Visual dashboards and analytics
Real-time alerts for authentication failures
Step-by-step deployment guidance
Managed MTA-STS and BIMI hosting
Multi-domain and team management

Email authentication protocols

DMARC

Domain-based Message Authentication

SPF

Sender Policy Framework

DKIM

DomainKeys Identified Mail

MTA-STS

Mail Transfer Agent Strict Transport Security

REST API + outbound webhooks.

Integrate DDMARC data into your applications and workflows.

View API docs

Example requestcurl

curl -X GET "https://api.ddmarc.com/v1/domains" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json"

25+

Endpoints

1k–25k/hour

Rate limit (per plan)

< 100 ms

p50 response time

Per-plan rate limits in the pricing comparison

Documentation