Mailtrain vs Postal
| Tagline | Self-hosted newsletter app built on Node.js with advanced list management | Self-hosted mail delivery platform, a SendGrid/Mailgun alternative |
| Category | Email & Newsletters | Email & Newsletters |
| Replaces | Mailchimp, SendGrid, ConvertKit (Kit) | SendGrid |
| GitHub stars | 5.4k | 17k |
| Language | JavaScript | Ruby |
| License | GPL-3.0 | MIT |
| Self-host difficulty | 3/5 Moderate | 4/5 Involved |
| Deploy options | Docker Docker Compose Manual | Docker Docker Compose Manual |
| Managed hosting | ||
| Last updated | 1 month ago | 18 days ago |
| View repo | View repo |
Where each falls short
The honest trade-offs — what you give up with each, versus the proprietary tools they replace.
Mailtrain
- Development activity has slowed considerably in recent years
- No built-in drag-and-drop email builder (relies on GrapesJS plugin)
- Documentation is sparse for v2 features
Postal
- You are responsible for IP reputation, warmup, and deliverability
- Requires MariaDB, RabbitMQ, and DNS/DKIM configuration to run
- No marketing-campaign UI — it is a delivery engine, not a newsletter builder
- Less hand-holding than managed providers for spam/blocklist issues
Bottom line
Choose Mailtrain if you want the lower-effort setup; choose Postal for the larger community and ecosystem. Postal has seen more recent development. Open each guide below for deploy steps and the full feature gap.
Mailtrain
Self-hosted newsletter app built on Node.js with advanced list management