Postmark pricing and limits
iScoreTransactional email service priced by monthly volume, with configurable log retention and inbound processing.
Postmark pricing at a glance
- Entry paid plan
- $15.00/month for Basic at the 10,000-email tier source ↗
- Pricing model
- One monthly price per volume tier, chosen on a slider, covering both sent and received email source ↗
- What the free plan includes
- 100 emails a month on the Developer tier, intended for testing an integration rather than production sending source ↗
- When the free offer ends
- Never — the free Developer plan does not expire source ↗
Who it suits
Teams that need to answer "what happened to this message" weeks later — 45 days of retention as standard, extendable to a year, is the longest window in this set.
Consider something else if…
The included volume is small for the price and overage is the most expensive here at $1.80 per 1,000 on the entry plan.
Editorial · Palash Bagchi · approved
Postmark's own site (postmarkapp.com) self-detects as: hosting — US hosting, Cloud Hosting, Server Location, Cloud PaaS · CDN — Edge Delivery Network · DNS — Enterprise DNS (category-level via BuiltWith, not a named vendor)
Each value below links to the page it was read from, with the sentence it came from. Criteria Postmark does not publish are not listed.
Postmark pricing
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“Free $0.00/mo Test your integration with 100 emails/month [...] Everyone starts on our free Developer tier, which includes 100 emails every month. And it never expires or runs out. [...] No overages allowed in this plan.”
Read 2026-09-06 · official pricing · Report a correction
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“Free $0.00/mo Test your integration with 100 emails/month [...] Everyone starts on our free Developer tier, which includes 100 emails every month. And it never expires or runs out. [...] No overages allowed in this plan.”
Read 2026-09-06 · official pricing · Report a correction
Sources (1) →Sources ↓
- Postmark Pricing ↗
“Everyone starts on our free Developer tier, which incl”
Read 2026-09-13 · official pricing · Report a correction
Sources (1) →Sources ↓
- Postmark Pricing ↗
“Start Free Trial No Credit Card Required”
Read 2026-09-13 · official pricing · Report a correction
Sources (1) →Sources ↓
- Postmark Pricing ↗
“All new accounts start off on our free developer plan with 100 emails per month. Use it for however long you need, it doesn't expire.”
Read 2026-09-13 · official pricing · Report a correction
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“How many emails do you send and receive each month? 10,000 emails [...] Basic $15.00/mo”
Read 2026-09-06 · official pricing · Report a correction
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“How many emails do you send and receive each month? [...] Basic $15.00/mo [...] Pro $16.50/mo [...] Platform $18.00/mo”
Read 2026-09-06 · official pricing · Report a correction
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“10,000 50,000 125,000 300,000 700,000 1,500,000 More [...] Basic $15.00/mo [...] Test your integration with 100 emails/month”
Read 2026-09-06 · official pricing · Report a correction
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“Extra emails @ $1.80 / 1,000 [...] Extra emails @ $1.30 / 1,000 [...] Extra emails @ $1.20 / 1,000 [...] No overages allowed in this plan.”
Read 2026-09-06 · official pricing · Report a correction
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“45-day data retention [...] Customizable data retention up to 365 days (45-day default)”
Read 2026-09-06 · official pricing · Report a correction
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“$50 /month per IP Our fully managed dedicated IPs are available to customers sending 300,000 emails per month or more. Only available on Pro plans or higher”
Read 2026-09-07 · official pricing · Report a correction
Sources (1) →Sources ↓
- Pricing — Postmark ↗
“Pro [...] Inbound email processing [...] Platform [...] Inbound email processing”
Read 2026-09-06 · official pricing · Report a correction
Compliance
Sources (1) →Sources ↓
- Postmark Security ↗
“our compliance, data protection, and information security teams all worked to prepare our services for GDPR.”
Read 2026-09-12 · official site · Report a correction
When these numbers change, hear about it. Sources are re-checked monthly; a repricing goes out as a short note.
Postmark pricing questions
How much does Postmark cost?
$15.00/month for Basic at the 10,000-email tier. Postmark prices by volume, so the figure rises with the slider.
Pricing — Postmark · read
How does Postmark charge?
One monthly price per volume tier, chosen on a slider, covering both sent and received email. Overage rates improve as the plan gets larger.
Pricing — Postmark · read
Does Postmark have a free tier?
Yes. 100 emails a month on the Developer tier, intended for testing an integration rather than production sending.
Postmark Pricing · read
Does the Postmark free offer expire?
Never — the free Developer plan does not expire.
Postmark Pricing · read

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