| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | — |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 0 |
| Spec score · Mail Server Software | 8.4 (#2) | 7.2 (#30) |
| Deployment | The product is downloadable for Linux and Windows and offers Docker images and Kubernetes deployment with AxiHelm. | Postfix is built from source and runs on UNIX-like systems; operating-system and appliance vendors also distribute ready-to-run versions. |
| Integrations | The features page lists OpenLDAP, Active Directory, OAuth 2.0, OpenID Connect, Zoom, and Microsoft Teams integrations or support. | The add-on directory lists third-party tools for authentication, content filtering, policy services, webmail, and other functions; entries are maintained by their authors without formal evaluation. |
| Product | Axigen is an all-in-one email, calendaring, and collaboration platform for organizations from small businesses to large service providers. | Postfix is Wietse Venema’s mail server, created as an alternative to Sendmail. |
| Support | The support page says business and channel support engineers are available around the clock, with an average response time under two hours for all issue types. | The postfix-users mailing list is for questions, problem reports, and feature requests; non-member postings are silently discarded. |
