Postmark
7.6#2 in email deliverability softwareFree planFree planWebAPI
VisitPostmark vs Retarus Transactional Email
Retarus Transactional Email
6.7#28 in transactional email servicesWebAPI
VisitWhat both publish
| Fact | Postmark | Retarus Transactional Email |
|---|---|---|
| Dedicated IP option | Yes | Yes |
| Founded | 2010 | 1992 |
| Integrations | Official integrations include Slack, Zapier, Stripe, WordPress, Supabase, Bubble, Craft CMS, Netlify, and Gravity Forms. | Retarus says Transactional Email integrates directly with SAP, Microsoft, Salesforce, and ServiceNow business applications. |
| Support | Postmark offers support by email, live chat, and one-on-one calls and reports a 95% customer happiness rating. | Retarus describes support from expert staff with no call center or chatbots, covering scope, migration, production, and go-live. |
Postmark plans
- 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
Retarus Transactional Email plans
- Free trialFree
- Transactional EmailPriced on request
Pick Postmark if…
Postmark suits developers who need to send application email through an API or SMTP and track delivery events. Its inbound processing and message streams also suit services handling both incoming and different types of outgoing email.
Pick Retarus Transactional Email if…
The service is aimed at software vendors, platform businesses, large enterprises and highly regulated industries that send transactional email from business applications. It may suit teams that need REST or SMTP integration and administrative monitoring.