Postmark

Best-in-class deliverability for transactional email. Strict sending policies, premium pricing.

Postmark is laser-focused on transactional email — receipts, password resets, notifications. Strict policies on what you can send (no marketing) keeps deliverability exceptional.

Full walkthrough being written.

When to pick

• You only send transactional email and want maximum deliverability.
• You need detailed bounce / spam reporting.
• You’re willing to pay slightly more per email for the quality.

Setup

POSTMARK_API_TOKEN in vly secrets. Verify domain in Postmark dashboard.

Related

Resend

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SendGrid

Broader-purpose alternative.

Mailchimp

For marketing email.