docker-mailserver vs Mailtrain
| Tagline | Production-ready, config-driven mail server in a single container | Self-hosted newsletter app built on Node.js with advanced list management |
| Category | Email & Newsletters | Email & Newsletters |
| Replaces | Gmail / Google Workspace | Mailchimp, SendGrid, ConvertKit (Kit) |
| GitHub stars | 18k | 5.4k |
| Language | Shell | JavaScript |
| License | MIT | GPL-3.0 |
| Self-host difficulty | 4/5 Involved | 3/5 Moderate |
| Deploy options | Docker Docker Compose Manual | Docker Docker Compose Manual |
| Managed hosting | ||
| Last updated | 17 days ago | 1 month 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.
docker-mailserver
- No admin web UI — all config is via files and the CLI
- No bundled webmail or groupware (calendar/contacts)
- Deliverability, DNS, and TLS setup are entirely your responsibility
- Not a newsletter/marketing tool — mailboxes only
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
Bottom line
Choose Mailtrain if you want the lower-effort setup; choose docker-mailserver for the larger community and ecosystem. docker-mailserver has seen more recent development. Open each guide below for deploy steps and the full feature gap.
docker-mailserver
Production-ready, config-driven mail server in a single container
Mailtrain
Self-hosted newsletter app built on Node.js with advanced list management