Postmark Pricing 2026
Plans, hidden costs, and alternatives compared
Prices last confirmed on Nov 9, 2026 on postmarkapp.com. Same data as Markdown or JSON.
Cite this data: Toolradar, Postmark pricing verified Nov 2026, toolradar.com/tools/postmark/pricing
Postmark starts at $15/month on the Basic plan.
Verified Nov 2026 from the official pricing page.
Is Postmark worth the price?
Postmark has built its entire reputation on one thing: deliverability.
While competitors like SendGrid and Mailgun compete on price and volume, Postmark competes on inbox placement, and the data backs it up. They enforce strict content policies (no bulk marketing on transactional streams), maintain a smaller sender pool, and actively remove bad actors, which keeps shared IP reputation high.
The pricing is straightforward: $15-18/month base plus per-email overage, no per-seat charges, no feature tiers that gate essential deliverability features. The gap between Basic ($1.80/1,000) and Platform ($1.20/1,000) is meaningful at scale, a 33% cost reduction per email.
The main limitation is that Postmark is purpose-built for transactional and broadcast email only; it is not a marketing automation platform. No drip campaigns, no visual email builders, no audience segmentation.
If you need those, pair Postmark (transactional) with a dedicated marketing tool.
Pricing Plans
Free
- 100 emails per month
- No overages
- Never expires
- Full API access
- Testing and evaluation
Basic
$15
- 10,000 emails per month
- $1.80 per 1,000 overage emails
- 45-day data retention
- 5 custom sending domains
- Unlimited daily emails
- Detailed analytics
Pro
$16.50
- 10,000 emails per month
- $1.30 per 1,000 overage emails
- Customizable retention up to 365 days
- 10 custom sending domains
- Inbound email processing
- All Basic features
Platform
$18
- 10,000 emails per month
- $1.20 per 1,000 overage emails
- Unlimited custom domains
- Unlimited users and servers
- All Pro features
Hidden Costs & Gotchas
DMARC monitoring is a paid add-on
$14/month per domain. Many competitors include basic DMARC reporting for free.
Activity retention is short on Basic
only 45 days of message activity retention on Basic.
Broadcast emails count against your quota
Postmark now supports broadcast (marketing-style) emails alongside transactional. Both count against your email volume. A monthly newsletter to 5,000 subscribers eats 50% of your 10,000-email base allocation
No built-in email template builder
Postmark provides basic templates but no drag-and-drop visual editor. You need to bring your own HTML templates or use a third-party builder like Maizzle or MJML. Competitors like Resend and SendGrid include more capable template editors
Overage is billed retroactively
overages are calculated at the end of the billing cycle and charged on the next month's invoice. A traffic spike can create an unexpectedly large bill the following month with no real-time spending cap
Which Plan Do You Need?
100 emails per month at zero cost with no expiration. Includes the same deliverability infrastructure as paid plans, no throttling, no sandboxing, no feature gates. Enough for testing transactional email flows, verifying DKIM/SPF setup, and prototyping webhook integrations before committing to a paid plan.
10,000 emails included at $15/month ($1.50 per 1,000 emails). Overage at $1.80 per 1,000 additional. Includes message streams (transactional + broadcast separation), 45-day activity retention, webhooks, and full API access. No dedicated IP, shared IP pool with Postmark's strict sender reputation management. For apps sending order confirmations, password resets, and notifications, this tier covers most early-stage needs.
Lowest overage at $1.20 per 1,000 emails, a 33% discount over Basic. Designed for multi-tenant architectures where one account manages email for multiple end customers. Same dedicated IP, DMARC, and retention add-ons as Pro. Breaks even with Pro at around 20,000 emails/month. The real value is operational: one Postmark account, multiple message streams, centralized deliverability monitoring across all client domains.
Custom volume pricing, dedicated account management, and negotiated SLAs. Required for senders consistently exceeding 300,000+ emails per month where per-email cost optimization matters. Contact sales for pricing, expect per-email rates well below the $1.20/1,000 Platform tier rate at sufficient volume.
How Postmark compares
3 of 6 direct competitors offer a free plan.
| Tool | Starting price | Free plan |
|---|---|---|
| Postmark | $15/month, billing unit not specified | Yes |
| SendGrid | $19.95/month flat for the whole organisation | No |
| Mailgun | $15/month flat for the whole organisation | Yes |
| Amazon SES | $0.16 per 1,000 emails | No |
| Sparkpost | $15/month flat for the whole organisation | Yes |
| Mailjet | $9/month flat for the whole organisation | Yes |
| InboxAlly | $149/month flat for the whole organisation | No |
Postmark Pricing FAQ
How much does Postmark cost?
Postmark starts at $15/month on the Basic plan. It offers 3 paid tiers ranging from $15/month to $18/month. A free plan is also available.
Does Postmark have a free plan?
Yes. Postmark offers a free plan called "Free". It includes: 100 emails per month, No overages, Never expires.
What is the cheapest Postmark paid plan?
The cheapest paid plan for Postmark is "Basic" at $15/month. Key features include: 10,000 emails per month, $1.80 per 1,000 overage emails, 45-day data retention.
What are alternatives to Postmark?
Alternatives to Postmark include SendGrid, Mailgun, Amazon SES, Sparkpost. SendGrid starts at $19.95/month flat for the whole organisation; Mailgun starts at $15/month flat for the whole organisation; Sparkpost starts at $15/month flat for the whole organisation.
Does Postmark have a promo code or discount code?
As of November 9, 2026, Toolradar has no Postmark promo code, coupon or discount code on file. Postmark's own pricing page (https://postmarkapp.com/pricing, read November 9, 2026) does list a free plan, so you can start without a code. Offers change, so confirm the terms at checkout.
Postmark alternatives
Direct competitors. Starting prices match the table above.
Sources
- Official Postmark pricing: postmarkapp.com/pricing (verified Nov 2026)
- Cite this data: Toolradar, Postmark pricing verified Nov 2026, toolradar.com/tools/postmark/pricing
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