Mailhardener vs Postmark: Which Should You Choose in 2026?
Both prices below were read from each vendor's own pricing page on the date shown.
Pricing side by side
| Plan | Mailhardener | Postmark |
|---|---|---|
| tier 1 | On request — 1 domain, up to 10,000 DMARC reports/mo, basic security check | Free — 100 free test emails/mo, full REST API, webhooks, 45 days history |
| tier 2 | On request — Up to 5 domains, 100,000 DMARC reports/mo, real-time alerts, MTA-STS and TLS-RPT | $15/mo — 10,000 emails/mo, 45 days full content retention, inbound processing |
| tier 3 | On request — Up to 25 domains, 500,000 DMARC reports/mo, team seats, API access | $55/mo — 50,000 emails/mo, full analytics, subaccounts, dedicated deliverability |
| tier 4 | — | $115/mo — 125,000 emails/mo, dedicated IP add-on available, priority support |
read from both vendors' pricing pages · 22 Aug 2026 · how we verify
Choose Mailhardener if
- IT and marketing operations teams implementing DMARC enforcement
- Companies securing their sending domains against spoofing and phishing
Choose Postmark if
- SaaS application developers requiring sub-second transactional delivery
- Product teams needing comprehensive 45-day email event troubleshooting logs
Where each one disappoints
Mailhardener
- Writing marketing newsletter copy and promotional templates
Postmark
- Scraped cold outbound sales email campaigns
Compiled by Stepan Noianov from both vendors' own sites. Something wrong? Report an inaccuracy.