Email & Messaging

Postmark

Fast, reliable transactional email delivery

Status
UnmaintainedNo commits in 1461 days.
Last checked
Checked · Oct 10, 2026
License
Open source
Pricing
Free tier
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What it is

Postmark is a transactional email service focused on deliverability and speed. Known for industry-leading delivery times and inbox placement rates.

When it fits — and when it doesn’t

A good fit for

  • Apps that need fast, reliable delivery of password resets, receipts, and notifications

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

No verified weaknesses on file yet. That’s a gap in our data, not a clean bill of health.

Pricing

Free tier
Yes
Paid from
—
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Postmark

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
Get the badge

A small badge for Postmark’s README or site: its name, “Tracked on AI Navigator”, and the availability status and check month from this page. It updates as the catalog does.

Postmark — tracked on AI Navigator

Markdown

[![Postmark — tracked on AI Navigator](https://navigateaitools.com/badge/postmark.svg)](https://navigateaitools.com/explorer/tool/postmark)

HTML

<a href="https://navigateaitools.com/explorer/tool/postmark"><img src="https://navigateaitools.com/badge/postmark.svg" alt="Postmark — tracked on AI Navigator" height="58"></a>