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Newcomer Speed vs Proven Deliverability

Resend vs Postmark: Which One Should You Choose in 1970?

Postmark has spent years earning a reputation for the highest transactional inbox rates, and charges for it with no free production tier. Resend is cheaper, more modern to integrate, and close enough on delivery for most products.

Quick verdict

Lowest cost for startups
Resendfree tier plus $20/mo Pro, React Email
Maximum inbox delivery
Postmarkseparate message streams and the strongest transactional reputation

Resend vs Postmark: feature comparison

FeatureResendProprietaryPostmarkProprietary
Free Tier3,000 emails/mo100 test emails/mo only
Entry Price$20/mo for 50,000 emails$15/mo for 10,000 emails
Cost per 1,000 at Entry~$0.40~$1.50
Message StreamsSingle stream with tagsSeparate transactional and broadcast streams
Marketing ToolsMinimalMinimal

Pricing takeaway

Postmark's $15/mo covers only 10,000 emails, about 3.7x the per-email cost of Resend's $20/mo for 50,000. A product sending 100,000 emails a month pays roughly $35 on Resend and far more on Postmark.

Resend
Per-email volume, flat monthly plans. Starts at $20/mo (Pro, 50,000 emails). Free 3,000 emails/mo (100/day), 1 domain.Full Resend pricing breakdown
Postmark
Per-email volume, no overage surprises. Starts at $15/mo (10,000 emails). Free trial: 100 test emails/mo.Full Postmark pricing breakdown

Pros and cons

Resend

Visit Resend

Pros

  • Clean REST API with React Email templates and SDKs for every major language
  • Deliverability dashboard with bounces, complaints and suppression lists in one view
  • Flat plans that do not charge per seat or per teammate

Cons

  • No self-hosting, so sending depends on a third party
  • Much less marketing automation than SendGrid or Mailchimp
  • Per-email cost at high volume is several times Amazon SES

Postmark

Visit Postmark

Pros

  • Best-in-class transactional deliverability with separate message streams
  • Simple per-email pricing with no feature gating on the API
  • Detailed activity log for every message, which makes debugging delivery fast

Cons

  • No production free tier at all
  • Almost no marketing campaign tooling
  • Per-email cost is high next to Amazon SES or Resend at volume

Resend vs Postmark: FAQ

Is Postmark a good alternative to Resend?

Postmark has spent years earning a reputation for the highest transactional inbox rates, and charges for it with no free production tier. Resend is cheaper, more modern to integrate, and close enough on delivery for most products.

Which is cheaper, Resend or Postmark?

Postmark's $15/mo covers only 10,000 emails, about 3.7x the per-email cost of Resend's $20/mo for 50,000. A product sending 100,000 emails a month pays roughly $35 on Resend and far more on Postmark.

Is Resend or Postmark open source?

Resend is proprietary. Postmark is proprietary.

Can I self-host Resend or Postmark?

Resend cannot be self-hosted. Postmark cannot be self-hosted.

Do Resend and Postmark have a free tier?

Resend: Free 3,000 emails/mo (100/day), 1 domain. Postmark: Free trial: 100 test emails/mo.