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Postmark
Transactional email with a reputation for fast, reliable delivery and clear logs.
| Category | Email APIs |
|---|---|
| Authentication | API key |
| Pricing | Paid |
| Website | https://postmarkapp.com/ |
| Docs | https://postmarkapp.com/developer |
| Last checked | 2026-10-14 |
| As JSON | /api/v1/directory/postmark.json |
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