Maileroo vs Postmark
Maileroo
maileroo.com
Postmark
postmarkapp.comSide by side
| Figure | Maileroo | Postmark |
|---|---|---|
| Price from | $10/mo | $5/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 8 | 8 |
| Spec score · Email APIs | 8.3 (#9) | 8.6 (#6) |
| Spec score · Transactional Email Software | 8.3 (#15) | 8.7 (#7) |
| Spec score · Transactional email services | 8.4 (#17) | 9.2 (#1) |
| Dedicated IP option | Yes | Yes |
| Founded | 2024 | 2010 |
| Free plan | Yes | Yes |
| Integrations | The integrations page lists SDKs for PHP, Laravel, Node.js, Python, .NET, Go, and Java, plus WordPress, WooCommerce, Zapier, Make, and Pabbly integrations. | Official integrations include Slack, Zapier, Stripe, WordPress, Supabase, Bubble, Craft CMS, Netlify, and Gravity Forms. |
| Support | Maileroo offers live chat and email support from a team based in Australia, available from 9 AM to 9 PM Melbourne time. | Postmark offers support by email, live chat, and one-on-one calls and reports a 95% customer happiness rating. |
Plans
Maileroo
- Free PlanFree
- FreeFree
- Basic$10 a month
- Starter$15 a month
- Premium$30 a month
- Pro$72 a month
- Ultimate$140 a month
- Enterprise$250 a month
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
Maileroo
Maileroo provides SMTP relay and Email API services for transactional and marketing email, along with inbound routing and testing tools. Sending features include streams, bounce and complaint handling, suppression handling, and resending messages from logs. Inbound routing can apply custom expression rules, catch-all or wildcard matching, forwarding, parsed JSON webhooks and automatic retries, with SPF and DKIM enforcement and spam checking.
Testing tools include SMTP and MX sinks, light and dark client previews, spam scoring, authentication and alignment checks, link and RBL checks, and API and CI/CD access. Maileroo also provides click and open tracking, delivery event reporting, searchable activity, data exports and real-time analytics. Listed integrations include SDKs for several programming languages and connections to WordPress, WooCommerce, Zapier, Make and Pabbly. Security options include encrypted storage, two-factor authentication, passkeys, SAML SSO, scoped API keys, role-based permissions and IP restrictions. The free plan includes monthly quotas; paid plans start at $10 a month. Monthly and hourly sending limits apply, and mail over the monthly quota is not sent until reset or plan upgrade.
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.