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Postmark

Sends app emails, with a paid plan sized for growing apps.

Priced from vendor pages
Prices checked
16 Oct 2026
Sources
1
How we check

What it is

Postmark sends app emails with a focus on fast, reliable delivery, and keeps one-to-one app emails separate from bulk newsletters. Its paid Basic plan covers 10,000 emails a month.

Good for

  • Apps that have outgrown free email plans
  • Products where receipts and resets must arrive reliably

Watch out for

  • The free plan is only 100 emails a month, so most live apps need Basic
  • It is for app emails, not marketing newsletters

How our builds use it

BuildRolePlanMonthlyNotes
Auth-heavy B2B app (Neon + Clerk)EmailTransactional emailFree (100/mo), then Basic $15 for 10,000£11.23No annual plans. VAT unknown

In comparisons

Resend vs Postmark for app emails

Free (100/mo) or Basic $15/mo for 10,000/mo

  • Basic costs less than Resend Pro once you outgrow the free plans.

The free plan is only 100 emails a month with no overages, so most live apps need Basic.

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