Modern email API without the legacy complexity
| Feature | Postject | Mailgun |
|---|---|---|
| REST API | Modern REST API | REST + SMTP |
| Inbox Placement | Built-in tracking | Separate Inbox Placement tool |
| Email Validation | Suppression management | Email validation API |
| Routing | Multi-IP pools | Inbound routing |
| Content Analysis | Pre-send spam scoring | Not available |
| MCP Server | AI assistant integration | Not available |
| Logs | Real-time with CLI tailing | Log retention (varies) |
| Analytics | Built-in dashboard | Basic stats |
| Pricing Model | Simple monthly tiers | Per-email + add-ons |
| Documentation | Interactive docs | Standard docs |
Free
100/day
$0/mo
Starter
10,000/mo
$10/mo
Pro
50,000/mo
$19/mo
Enterprise
500,000/mo
$120/mo
Free (Trial)
100/day (30 days)
$0/mo
Foundation
50,000/mo
$35/mo
Scale
100,000/mo
$90/mo
Custom
Custom
Custom
Transparent pricing without per-email billing complexity
Built-in inbox placement visibility included in every plan
Modern developer tooling with CLI and AI MCP server
Pre-send content analysis to catch issues before delivery
No trial expiration on free tier -- keep building at your own pace
Yes. Postject offers a cleaner API, simpler pricing, and built-in deliverability tools that Mailgun charges extra for. The developer experience is more modern, with CLI tooling and AI assistant integration.
Postject is significantly cheaper. The Pro plan at $19/mo includes 50,000 emails. Mailgun's Foundation plan costs $35/mo for the same volume. Mailgun also charges separately for features like inbox placement testing.
Postject focuses on outbound email delivery and deliverability. For inbound email parsing, you'd use a dedicated service. Postject's multi-IP routing manages outbound reputation and delivery optimization.