At a glance
- Postmark is listed under Transactional email, alongside Amazon SES, Brevo and MailerSend.
- Postmark has a free plan.
- Postmark's lowest paid plan is Basic at $15.00 per month for 10,000 emails, as of October 20, 2026.
- Postmark offers a free trial (length not stated).
- Postmark is available on API and SMTP.
- Postmark works with Zapier, Supabase, Stripe, Slack, Datadog and others.
- Postmark's main features: Email API, SMTP service, Message streams, Email templates, Inbound email, Bulk API.
- Postmark's website lists GDPR.
- Postmark has a public API.
Facts from postmarkapp.com, checked October 20, 2026.
AI summary
The summary writes itself once 5 people have reviewed this tool.
It's built only from what reviewers say: who it's best for, who should think twice, and what comes up again and again.
Reviews needed for a summary0 of 5
