Proxmox Backup Server vs Rspamd
| Proxmox Backup Server | Rspamd | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | €46.67/mo | — |
| Open source | No | No |
| Platforms | Linux, Web | Linux, macOS |
| Free plan | No | Yes |
| Outbound filtering | Yes | Yes |
| Deployment model | gateway | gateway |
| Impersonation protection | — | Yes |
Both are listed in Best Email Security Gateways, Best Email Anti-Spam Software. On Freedom251, Proxmox Backup Server scores higher on our published basis.