# Postmark Email API plans, limits and prices Transactional email over an HTTP API or SMTP, in Free, Basic, Pro and Platform plans. - Provider: Postmark - Kinds: Email API - Plans recorded: 4 - Checked: 2026-10-17 - Page for people: https://plans.intoperson.com/p/postmark-email-api ## Plans Values that apply to one plan. "Not stated" means the official pages do not say; it is not an estimate. ### Free (Developer) Plan id: `postmark-free` · Free plan - Price: Free [1] - Included: 100 emails every month [2] - Extra usage: No extra usage [3]. At the limit: the official page says the plan offers no extra usage. - Concurrency: Not recorded - Rate limit: Not recorded - Log and event retention: Logs kept 45 days [4][5] - Dedicated sending IP address: Not included [6][7] - Visit: [Pricing page](https://plans.intoperson.com/go/postmark-free) (choose the plan on the page) ### Basic Plan id: `postmark-basic` · Subscription - Price: $15/month [8][9] - Included: 10,000 emails per month [8] - Extra usage: $1.80 per 1,000 extra [8][10] - Concurrency: Not recorded - Rate limit: Not recorded - Sending domains: Up to 5 sending domains [11] - Log and event retention: Logs kept 45 days [12] - Dedicated sending IP address: Not included [6][13] - Visit: [Pricing page](https://plans.intoperson.com/go/postmark-basic) (choose the plan on the page) ### Pro Plan id: `postmark-pro` · Subscription - Price: $16.50/month [14][9] - Included: 10,000 emails per month [14] - Extra usage: $1.30 per 1,000 extra [14][15] - Concurrency: Not recorded - Rate limit: Not recorded - Sending domains: Up to 10 sending domains [16] - Log and event retention: Logs kept 45 days [17][18] - Dedicated sending IP address: Not included; sold as an add-on at $50 per month [6][19] - Inbound email processing: Yes [20] - Visit: [Pricing page](https://plans.intoperson.com/go/postmark-pro) (choose the plan on the page) ### Platform Plan id: `postmark-platform` · Subscription - Price: $18/month [21][9] - Included: 10,000 emails per month [21] - Extra usage: $1.20 per 1,000 extra [21][22] - Concurrency: Not recorded - Rate limit: Not recorded - Sending domains: No limit on sending domains [23] - Log and event retention: Logs kept 45 days [17][18] - Dedicated sending IP address: Not included; sold as an add-on at $50 per month [6][19] - Inbound email processing: Yes [20] - Visit: [Pricing page](https://plans.intoperson.com/go/postmark-platform) (choose the plan on the page) ## Applies to every plan Recorded for the product or the provider; a plan-level value or a listed exception replaces it. - Data storage or processing region (all products): US [24][25] ## Collection notes The pricing page shows one tier per plan for the volume chosen in its slider (default 10,000 emails a month). Other volume tiers, Enterprise and the add-ons other than dedicated IPs are not modelled. The security statements are on a privacy page that carries no date. ## Sources and notes Each number points to the provider's own sentence, as it appears on the page on the date shown. 1. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > Free $0.00 /mo Test your integration with 100 emails/month 2. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > Everyone starts on our free Developer plan, which includes 100 emails every month. And it never expires or runs out. 3. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > No overages allowed in this plan. 4. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > Detailed Activity Retention Full message retention 45 Days 45 Days 45 Days Custom retention available as add-on 45 Days Custom retention available as add-on 5. The first of four columns (Free, Basic, Pro, Platform). 6. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > Dedicated IPs Starts at $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 7. Dedicated IPs are an add-on only on Pro plans or higher. 8. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > Basic $15.00 /mo For solo developers and smaller teams Starting at 10,000 emails/month. Extra emails @ $ 1.80 / 1,000 9. The price shown for 10,000 emails a month, the default of the volume slider; the card says "Starting at 10,000 emails/month". 10. How the value follows from the source: Extra emails at $1.80 per 1,000. 11. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > 5 Custom sending domains 12. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > 45-day data retention 13. Dedicated IPs are sold only on Pro plans or higher. 14. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > Pro $16.50 /mo For start-ups and small businesses Starting at 10,000 emails/month. Extra emails @ $ 1.30 / 1,000 15. How the value follows from the source: Extra emails at $1.30 per 1,000. 16. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > 10 Custom sending domains 17. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > Customizable data retention up to 365 days (45-day default) 18. Default; a longer period (up to 365 days) is an add-on from $5 a month. 19. Sold as an add-on from $50 a month per IP, to customers sending 300,000 emails a month or more; not part of the plan. 20. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > Inbound email processing 21. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > Platform $18.00 /mo For agencies and larger teams Starting at 10,000 emails/month. Extra emails @ $ 1.20 / 1,000 22. How the value follows from the source: Extra emails at $1.20 per 1,000. 23. [postmarkapp.com/pricing](https://postmarkapp.com/pricing) · official pricing · read 2026-10-17 > Unlimited Custom sending domains 24. [postmarkapp.com/eu-privacy](https://postmarkapp.com/eu-privacy) · official docs · read 2026-10-17 > Postmark's primary data and servers are hosted at Deft's data center (located outside of Chicago), and Amazon Web Services (AWS) . We currently don't have plans to add servers in the EU 25. The page names a data center near Chicago and AWS and says there are no plans for servers in the EU. Check these plans against a workload: https://plans.intoperson.com/guide.md describes the inputs; the REST form is GET https://plans.intoperson.com/api/v1/products/postmark-email-api.