Hermes-Secure-Email-Gateway
Security
v261026
This self-hosted email security platform works as a secure email gateway, a full mail server, or both in hybrid mode.todayAGPL-3.0No DockerAdvanced
Self-hosted alternatives to Mimecast
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About these Mimecast alternatives
1 open-source, self-hosted alternatives to Mimecast are listed here, ranked by popularity, maintenance and documentation.
- Highest rated
- Hermes-Secure-Email-Gateway (141 GitHub stars, AGPL-3.0 license, written in JavaScript)
- Recently updated
- Hermes-Secure-Email-Gateway v261026 on 2026-10-28
Mimecast alternatives compared
| Project | License | Language | Stars | Docker | Setup | Latest release | Score |
|---|---|---|---|---|---|---|---|
| Hermes-Secure-Email-Gateway | AGPL-3.0 | JavaScript | 141 | — | Advanced | v261026 | 48 |