Free
Free
Pricing lists Free at $0 per month for 100 emails.
- Volume
- 100 emails per month on Free with no overages
Finding the possibilities
Postmark
● Identity checkedMessaging · Vendor site 2026-10-04
Postmark is a transactional email delivery service for developers with SMTP and REST APIs, message streams, templates, inbound processing, and deliverability analytics. It targets teams that need reliable transactional mail rather than bulk marketing sends.
- Category
- Messaging
- Free access
- Free Developer plan includes 100 emails per month with no credit card required and no overages on that tier.
- API access
- Product pages document REST and SMTP APIs plus inbound email processing on higher tiers.
Is Postmark right for you?
A good fit for
Developers and SaaS teams sending password resets, receipts, and other transactional messages who prioritize deliverability.
Before you choose
Free plan caps at 100 emails per month with no overages allowed on that tier.
Transactional email API
Postmark packages SMTP and REST sending with templates, inbound mail, and analytics aimed at product notifications rather than newsletters.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Deliverability focus | Homepage meta emphasizes fast, reliable transactional email delivery via SMTP and API. | Facts sourced | 2026-10-04 |
| Basic price | Pricing slider lists Basic at $15 per month for 10,000 emails. | Facts sourced | 2026-10-04 |
| Free tier | Pricing notes a Free plan with 100 emails per month for integration testing. | Facts sourced | 2026-10-04 |
Understand the total cost
Postmark pricing & plans
Basic
$15.00 /mo
Pricing lists Basic at $15 USD per month starting at 10,000 emails.
- Domains
- 5 custom sending domains on Basic
Pro
$16.50 /mo
Pricing lists Pro at $16.50 USD per month starting at 10,000 emails.
- Retention
- Customizable data retention up to 365 days on Pro
Platform
$18.00 /mo
Pricing lists Platform at $18 USD per month starting at 10,000 emails.
- Domains
- Unlimited custom sending domains on Platform
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Explore toolThe practical questions
Frequently asked questions
What is Postmark used for?
Postmark is a transactional email delivery service for developers with SMTP and REST APIs, message streams, templates, inbound processing, and deliverability analytics. It targets teams that need reliable transactional mail rather than bulk marketing sends.
Does Postmark have a free plan?
Free Developer plan includes 100 emails per month with no credit card required and no overages on that tier.. This record lists ongoing free access; check the plan limits before starting.
How much does Postmark cost?
The listed monthly price is $15.00 USD at monthly billing. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use Postmark through an API?
Product pages document REST and SMTP APIs plus inbound email processing on higher tiers.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
Free plan caps at 100 emails per month with no overages allowed on that tier.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.