plugmyagent

Postmark

Email Free tier (card may be required)

AuthenticationFree tier (card may be required)
Rate limitFree Developer plan: 100 emails/month, never expires

Documentation: postmarkapp.com ยท Checked Sep 13, 2026

About

Postmark is the email service developers reach for when receipts, password resets, and order confirmations absolutely must arrive. Their free Developer plan gives you 100 emails a month with no expiration date. It never runs out. Known for excellent deliverability and simple, honest pricing.

Details

Free tier, but a card may be required to sign up.

Auth: Free tier (card may be required)

Rate limit: Free Developer plan: 100 emails/month, never expires

Verified: 2026-09-13

Best for: business developer

Read the docs Back to catalog

Setup

  1. Sign up for a free Postmark account
  2. Create a server to get your server API token
  3. Verify the domain or address you'll send from
  4. Send a test email from the dashboard
  5. Add the API call to your app for receipts, invites, and alerts
Sign up