Best Transactional Email · pricing · Updated June 2026

Postmark pricing (2026)

Postmark starts at $0/mo (Free), across 5 plans. Best for Teams where transactional deliverability is non-negotiable. Every figure links to Postmark's own page and the date we captured it.

At a glance

Entry price: $0/mo (Free)
Free tier: Yes
Compliance: HIPAA — · SOC 2 — · GDPR Yes
Best for: Teams where transactional deliverability is non-negotiable; SaaS products needing inbox separation between transactional and marketing streams; Developers wanting broad framework coverage (Rails, Django, Laravel, .NET, Node.js)

Postmark plans & pricing

All published Postmark plans. Sourced per row; quote-only tiers show no price.
Plan	Monthly	Annual	Billing	Notes	Source
Free	$0	—	flat	100 emails/month, no overages allowed; 45-day data retention, up to 10 custom domains, unlimited emails/day, testing integration.	postmarkapp.com
Basic	$15	—	flat	10,000 emails/month included, $1.80 per 1,000 overage; 45-day retention, 5 custom domains, unlimited emails/day, detailed analytics.	postmarkapp.com
Pro	$16.5	—	flat	Most popular. 10,000 emails/month included, $1.30 per 1,000 overage; customizable retention up to 365 days, 10 custom domains, inbound email processing. Dedicated IP add-on from $50/mo.	postmarkapp.com
Platform	$18	—	flat	10,000 emails/month included, $1.20 per 1,000 overage; unlimited custom domains, unlimited users, customizable retention up to 365 days, inbound email processing.	postmarkapp.com
Enterprise	Quote-only	—	flat	Quote-only; custom pricing for senders exceeding 1.5 million emails/month, contact sales.	postmarkapp.com

Last verified 2026-06-13. https://postmarkapp.com/pricing (official pricing page, accessed 2026-06-13; flat monthly plans bundling 10,000 emails with per-1,000 overage rates differing by tier)

Capabilities

Integrations: WordPress (WP Mail SMTP, Gravity SMTP), Zapier, Supabase, Stripe, Slack, Netlify, Customer.io, Craft CMS.

Key features: Message Streams — separate infrastructure for transactional vs. promotional to protect deliverability; Inbound email processing (parse incoming emails into webhooks); MCP server integration for AI coding tools (Claude Code, Cursor, GitHub Copilot); 95%+ customer satisfaction rating; premium support included on all paid tiers; EU data protection and GDPR compliance with DPA available.

Plan limits: Free: 100 emails/month, no overages, 45-day retention; Basic: 10,000 emails/month included, $1.80/1K overage; Platform: unlimited domains and users; Enterprise: custom for 1.5M+ emails/month.

Frequently asked questions

How much does Postmark cost?

Postmark starts at $0/mo (Free); it has 5 published plans. Verified 2026-06-13.

What are cheaper alternatives to Postmark?

Cheaper transactional email than Postmark (entry $0/mo) include MailerSend at $7/mo, SMTP2GO at $10/mo. Verified 2026-06-13.

Does Postmark support HIPAA?

Postmark HIPAA support: —. SOC 2: —. GDPR: Yes.

Does Postmark have a free plan?

Postmark free tier: Yes.

Postmark vs alternatives

Compare all transactional email → · Postmark alternatives → · Open data · MCP