Postmark DMARC

Postmark DMARC is the lightweight DMARC monitoring service attached to Postmark. The free version turns aggregate reports into weekly email digests. DMARC Digests adds a dashboard, more source detail, longer history, user management, and a paid per-domain plan.

At an early stage the deciding factors are what the free tier actually covers, what the first paid invoice looks like, and how much of a founding engineer's week the setup costs. Feature depth that only matters at a million sends a month is noise until it is not.

Against a waitlist, a launch announcement, onboarding email, and the first transactional sends, Postmark DMARC covers developer experience, and does not cover scheduling, SDK breadth, and webhook coverage. Whether that gap matters depends on how central those are to the build.

• Free tier: Free weekly DMARC monitoring with top sources and 7 days of history
• Best published rate per 1,000: Tiers not published in comparable form
• Starts at: $14/mo per domain for DMARC Digests
• DX score: 8/10
• Deliverability: Not a sender. Best used to monitor DMARC alignment and identify unauthorized or misconfigured mail sources.
• Operating since: Not published
• Scheduling: No
• SDKs: None
• Webhooks: No

Not a sender. Best used to monitor DMARC alignment and identify unauthorized or misconfigured mail sources.

Teams that need simple DMARC monitoring without adopting a larger security platform.

Agencies and security teams that need multi-tenant dashboards or enforcement workflows.