Abnormal Email Security vs Proxmox Backup Server
| Abnormal Email Security | Proxmox Backup Server | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | €46.67/mo |
| Open source | No | No |
| Platforms | api, Web | Linux, Web |
| Outbound filtering | Yes | Yes |
| Impersonation protection | Yes | — |
| Deployment model | cloud | gateway |
| Microsoft 365 support | Yes | — |
| Google Workspace support | Yes | — |
| Free plan | — | No |
Both are listed in Best Email Security Gateways. On The Geeks Club, Proxmox Backup Server scores higher on our published basis.