| Price from | €8.90/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| macOS | — | Yes |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 7 | 1 |
| Spec score · Mail Server Software | 8.4 (#3) | 7.4 (#28) |
| Security | Two-factor authentication options include YubiKey OTP, WebAuthn, and TOTP. | Project goals include careful validity checks on network input and privilege separation to mitigate possible security bugs. |
| Support | Commercial support is available through Servercow, while community support is voluntary, best-effort, and not guaranteed. | The project is volunteer-developed and is not backed by a commercial entity. |
