Postmark's free plan: 100 emails a month
Postmark's free plan includes 100 emails a month, with no overages allowed. On Mailfully's free plan you get 5,000 a month. After the free plan, Postmark's next step is Basic, at $15 a month for 10,000 emails.
Postmark's figures checked October 7, 2026, against its own pages.
What's in Postmark's free plan?
| Detail | Mailfully | Postmark |
|---|---|---|
| Emails a month | 5,000 emails | 100 emails |
| Daily limit | 200 emails | No daily limit |
| At the limit | Sending stops at the allowance, and nothing is billed | No overages allowed |
| How long it lasts | No time limit once your domain is verified | No time limit |
| Card to sign up | Not needed | Not needed |
| Sending domains | 3 | 10 |
| Log retention | 30 days | 45 days |
| Inbound email | Included, and received mail counts toward the allowance | Included, and inbound messages count toward the 100 |
| Test sends | Go to test addresses only, and never count toward the allowance | Count toward the quota |
| First paid plan | $19 a month for 50,000 emails | $15 a month for 10,000 emails |
Postmark figures from its own pages, checked in October 2026. A new account can send live mail as soon as its domain is verified, and a short review, usually within a day, lets it send more.
Where does Postmark's free plan fall short?
Postmark sizes the free plan for testing
Postmark pitches the free plan for testing an integration, and 100 emails a month suits that. Once real users sign up, every welcome email and sign-in link comes out of the same 100.
Nothing between 100 and 10,000
Postmark's pricing page says it has no tier between the free plan and Basic, which costs $15 for 10,000 emails. Since Free allows no overages, an app that needs a few hundred emails a month ends up paying for 10,000. On Mailfully that app fits inside the free plan.
Test messages count
Each sandboxed test message counts as one email on Postmark, the same as a live one. On a plan of 100 a month, testing a new template a few times leaves less for your users.
Who is Postmark's free plan a good fit for?
Postmark's free plan wins on domains and message history. It allows up to 10 sending domains where ours allows 3, and it keeps 45 days of message history to our 30 days. It also sends broadcast mail from IP ranges kept apart from transactional mail. And if you need more than our free 5,000 but no more than 10,000 emails a month, Postmark's $15 Basic plan costs less than our $19 one.
Questions
- Does Postmark have a free plan?
- Yes, Postmark's free Developer plan includes 100 emails a month and doesn't expire. You don't need a credit card to start on it.
- Can I pay for extra emails on Postmark's free plan?
- No, Postmark allows no overages on the free plan. To send more than 100 a month you move to Basic, which starts at $15 a month for 10,000 emails.
- Can Postmark's free plan receive email?
- Yes, Postmark's free plan includes inbound email, with each processed inbound message counted toward the 100. Basic leaves inbound out, so moving from Free to Basic loses it; Pro and Platform include it. We include inbound on our free plan as well, counted against the allowance the same way.
Try the free plan
5,000 emails a month on the free tier, no card. A paid plan starts at $19/mo, with $0.40 per 1,000 emails past its allowance.
Start free