platform service · cost

How much does Postmark cost?

Postmark bills across 3 metered dimensions. The table below lists the current per-unit rates, verified June 14, 2026. What you actually pay depends on your usage volume, which is the number a scan computes for your specific app.

Last verified June 14, 2026Official Postmark pricing

Postmark pricing breakdown

Per-unit pricing by metered dimension.
Metered dimensionPrice
Basic email overage$1.8 / 1k emails
Pro email overage$1.3 / 1k emails
Platform email overage$1.2 / 1k emails

Three paid tiers (Basic, Pro, Platform) all starting at 10k emails/month with different overage rates and features. Free plan includes 100 emails/month. Enterprise/high-volume via contact. Add-ons: Dedicated IPs ($50/mo+), Custom retention ($5/mo+), DMARC monitoring ($14/mo+ per domain).

Source: postmarkapp.com · Catalog 2026-06-14.2. Confirm the live rate before you commit.

What does Postmark cost inside your app?

The rates above are per unit. Your bill is those rates times how hard your code leans on Postmark, plus everything around it. PrePrice scans your project, finds where you call Postmark, and computes your real cost per user and what to charge.

Find your real cost — free

Postmark cost questions

How is Postmark billed?

Postmark is billed per metered unit of usage. See the table above for each dimension and its rate, and the official pricing page for plan minimums and included allowances.

Why is my Postmark bill higher than expected?

The per-unit rate is only one of the four numbers that set your bill. The others are how much your app uses Postmark, how often, and across how many users. Long prompts, retries, multi-step agents, and uncached repeated context all multiply the rate. PrePrice models that usage from your code so the number is real, not a guess.

Where do these Postmark prices come from?

From Postmark's official pricing page (postmarkapp.com), verified June 14, 2026 and re-checked on a schedule. Pricing changes often, so confirm the live rate before you commit.

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