Postmark
7.6#2 in email deliverability softwareFree planFree planWebAPI
VisitPostmark vs Unspam.email
Unspam.email
7.4#5 in email deliverability softwareFrom $5 a monthFree planWebAPI
VisitWhat both publish
| Fact | Postmark | Unspam.email |
|---|---|---|
| Integrations | Official integrations include Slack, Zapier, Stripe, WordPress, Supabase, Bubble, Craft CMS, Netlify, and Gravity Forms. | The API is designed to receive real messages from SES, Postmark, SendGrid, Mailgun or a customer’s SMTP system. |
| Security | Postmark supports TLS and HTTPS, DKIM, SPF, DMARC, two-factor authentication, API permission controls, penetration testing, and DDoS protection. | The privacy policy says stored data is kept on services and providers certified to ISO/IEC 27001:2013, PCI DSS, SOC 1 Type II, and SOC 2 Type II or higher. |
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
Unspam.email plans
- FreeFree
- No accountFree
- Custom plan$5 a month
- Basic$9 a month
- Business$19 a month
- Agency$29 a month
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 Unspam.email if…
It suits marketers, founders, agencies and product teams that need to check email deliverability or track inbox placement. Teams evaluating the free plan should account for its test, retention and feature limits.