docker-mailserver vs Haraka
| Tagline | Production-ready, config-driven mail server in a single container | Fast, highly extensible event-driven SMTP server in Node.js |
| Category | Email & Newsletters | Email & Newsletters |
| Replaces | Gmail / Google Workspace | SendGrid |
| GitHub stars | 19k | 5.6k |
| Language | Shell | JavaScript |
| License | MIT | MIT |
| Self-host difficulty | 4/5 Involved | 4/5 Involved |
| Deploy options | Docker Docker Compose Manual | Docker Manual |
| Managed hosting | ||
| Last updated | 12 days ago | 9 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.
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
Haraka
- Low-level MTA — no web UI, dashboards, or campaign tooling
- Requires writing/configuring plugins for real-world setups
- No built-in analytics, tracking, or template management
- Deliverability and reputation management are entirely on you
Bottom line
Both are a similar lift to self-host; choose docker-mailserver for the larger community and ecosystem. Haraka 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