Infobip Email API vs Postmark
Infobip Email API
infobip.com
Postmark
postmarkapp.comSide by side
| Figure | Infobip Email API | Postmark |
|---|---|---|
| Price from | — | $5/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 2 | 8 |
| Spec score · Transactional email services | 8.5 (#12) | 9.2 (#1) |
| Spec score · Transactional Email Software | 8.5 (#12) | 8.7 (#7) |
| Dedicated IP option | Yes | Yes |
| Delivery methods | both | Postmark supports REST API, SMTP, and multi-region SMTP routing. |
| Founded | 2006 | 2010 |
| Free plan | No | Yes |
| Integrations | Email is available inside Infobip Broadcast, Moments and Conversations, with web-interface and HTTP API workflows. | Official integrations include Slack, Zapier, Stripe, WordPress, Supabase, Bubble, Craft CMS, Netlify, and Gravity Forms. |
| Templates | Templates can be created in the web interface and invoked from API requests with a template identifier. | Postmark provides editable responsive templates for welcome emails, password resets, receipts, invoices, invitations, and other transactional messages. |
| What it does | Infobip Email is a cloud service for transactional and marketing email with web, HTTP API and SMTP API delivery. | Postmark delivers and tracks application email as a replacement for SMTP or Sendmail. |
Plans
Infobip Email API
- Pay as you goPrice not published
- Email API pay-as-you-goPriced on request
Postmark
- FreeFree
- Basic$15 a month
- Pro$16.50 a month
- Platform$18 a month
- Custom activity retention$5 a month
- DMARC monitoring$14 a month
- Dedicated IP$50 a month
- High-volume plansPriced on request
In their own words
Infobip Email API
Infobip Email API has no write-up on Specifiction yet; its figures are above.
Postmark
Postmark delivers and tracks application email as an alternative to SMTP or Sendmail. It separates transactional and broadcast messages into different Message Streams and IP infrastructure. Developers can send through REST API, SMTP, or multi-region SMTP routing, with official libraries for Node.js, Python, Rails, Ruby, PHP, and.NET. Inbound messages can be converted to JSON and sent to a webhook URL. Tracking includes delivery, bounces, spam, opens, and links, with event webhooks. Editable responsive templates cover transactional messages such as password resets, receipts, and invitations. The free Developer plan costs nothing, provides 100 emails per month, permits no overages, and does not expire. Basic starts at $15 a month for 10,000 emails per month; extra emails cost $1.80 per 1,000 and are calculated at the end of the billing cycle. Unused emails do not roll over. Postmark lists API and web access. Its iOS app was sunset in June 2025 and is no longer supported.