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.

Growth work lives or dies on targeting and measurement. What matters is whether behavioral triggers can be built without engineering time, whether the event stream supports attribution past the open, and whether deliverability holds when broadcast volume shares a reputation with product email.

Against behavior-triggered journeys, broadcasts, and winback campaigns measured on revenue, Postmark DMARC covers event stream, and does not cover scheduling, the suppressions API, and multi-tenant support. Whether that gap matters depends on how central those are to the build.

• Scheduling: No
• Event stream: Yes
• Deliverability: Not a sender. Best used to monitor DMARC alignment and identify unauthorized or misconfigured mail sources.
• Operating since: Not published
• Suppressions API: No
• Best published rate per 1,000: Tiers not published in comparable form
• Multi-tenant: No
• Free tier: Free weekly DMARC monitoring with top sources and 7 days of history
• Starts at: $14/mo per domain for DMARC Digests

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.