Yes, Postmark has a permanent free tier alongside its paid plans. The free plan includes 100 emails per month. FreeTier.co estimates the free tier at about $2.00/mo, and no credit card is required to sign up.
About
Postmark is an email delivery service that exposes both an Email API and SMTP service for sending transactional and broadcast email. The platform also includes inbound email processing, message streams, templates, webhooks, analytics, and official SDKs for common languages and frameworks.
The free developer tier includes 100 emails per month and never expires. It is intended for integration testing, deliverability evaluation, and low-volume side projects, while paid plans add higher monthly sending limits, more domains, longer retention, and inbound processing.
- 100 emails per month free
- REST API and SMTP sending
- Inbound email to JSON webhooks
- Official SDKs and libraries
- 45-day message retention on paid plans
- Separate message streams for mail types
Free Tier Value
This free tier gives a real but tightly capped monthly allowance: 100 emails with no overages, and it never expires. Compared with the cheapest paid plan at $15/month for 10,000 emails, that’s about 1% of the sending volume and a small but useful slice of the product, so a fair buyer-side estimate is about $2/month. A credit card is not required, which lowers friction, but the hard cap keeps the value well below the paid plans.
What's included in the free tier
Verified
- 100 emails per month.
- No overages allowed on the free plan.
- Free developer tier never expires or runs out.
See Postmark pricing for current limits.
Paid plans
Basic
- emails/month
- 10,000
- custom sending domains
- 5
- data retention
- 45 days
- Industry-leading deliverability rates & speed
- 45-day data retention
- 5 Custom sending domains
- Unlimited emails/day
- Detailed analytics and insights
Pro
- emails/month
- 10,000
- custom sending domains
- 10
- data retention
- up to 365 days
- Industry-leading deliverability rates & speed
- Customizable data retention up to 365 days (45-day default)
- 10 Custom sending domains
- Unlimited emails/day
- Detailed analytics and insights
- Inbound email processing
Platform
- emails/month
- 10,000
- custom sending domains
- unlimited
- data retention
- up to 365 days
- Industry-leading deliverability rates & speed
- Customizable data retention up to 365 days (45-day default)
- Unlimited Custom sending domains
- Unlimited emails/day
- Detailed analytics and insights
- Inbound email processing
Pricing extracted from Postmark's pricing page. Always verify current pricing before committing.
Common questions
Is Postmark free forever?
Yes. Postmark has a permanent free tier alongside its paid plans, though the allowance typically resets each month.
Does Postmark require a credit card?
No. You can start on Postmark's free tier without entering card details.
What happens when you exceed Postmark's free tier?
You move to a paid plan. Postmark's cheapest paid plan is Basic at $15 / month.
What is Postmark's free tier worth?
Postmark's free tier is worth about $2.00 per month. That maps to an FTV score of 50/100. The FTV score is explained at freetier.co/ftv.
