Email API
Postmark Email API
Transactional email over an HTTP API or SMTP, in Free, Basic, Pro and Platform plans.
Plans
Values that apply to one plan. "Not stated" means the official pages do not say; it is not an estimate.
| Plan | Price | Included | Extra usage | Concurrency | Rate limit | Buy |
|---|---|---|---|---|---|---|
| Free (Developer)Free plan | Free7 |
100 emails every month8 |
Not recorded |
Not recorded |
Pricing pageChoose the plan on the page | |
| BasicSubscription | 10,000 emails per month13 |
Not recorded |
Not recorded |
Pricing pageChoose the plan on the page | ||
| ProSubscription | 10,000 emails per month21 |
Not recorded |
Not recorded |
Pricing pageChoose the plan on the page | ||
| PlatformSubscription | 10,000 emails per month24 |
Not recorded |
Not recorded |
Pricing pageChoose 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.
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.
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
The page names a data center near Chicago and AWS and says there are no plans for servers in the EU.
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
The first of four columns (Free, Basic, Pro, Platform).
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
Dedicated IPs are an add-on only on Pro plans or higher.
Free $0.00 /mo Test your integration with 100 emails/month
Everyone starts on our free Developer plan, which includes 100 emails every month. And it never expires or runs out.
No overages allowed in this plan.
5 Custom sending domains
45-day data retention
Dedicated IPs are sold only on Pro plans or higher.
Basic $15.00 /mo For solo developers and smaller teams Starting at 10,000 emails/month. Extra emails @ $ 1.80 / 1,000
The price shown for 10,000 emails a month, the default of the volume slider; the card says "Starting at 10,000 emails/month".
How the value follows from the source: Extra emails at $1.80 per 1,000.
10 Custom sending domains
Customizable data retention up to 365 days (45-day default)
Default; a longer period (up to 365 days) is an add-on from $5 a month.
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.
Inbound email processing
Pro $16.50 /mo For start-ups and small businesses Starting at 10,000 emails/month. Extra emails @ $ 1.30 / 1,000
How the value follows from the source: Extra emails at $1.30 per 1,000.
Unlimited Custom sending domains
Platform $18.00 /mo For agencies and larger teams Starting at 10,000 emails/month. Extra emails @ $ 1.20 / 1,000
How the value follows from the source: Extra emails at $1.20 per 1,000.