| Price from | €11.61/mo | $29.08/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 7 | 3 |
| Spec score · Mail Server Software | 8.0 (#12) | 8.0 (#13) |
| Administration | Its online administration panel manages domains, mailboxes, aliases, and other settings. | The product includes web administration, a REST API, mailbox quotas, and per-mailbox settings. |
| Company | The website is edited by NGYNLABS, registered in Nantes, France, with its registered office at 14 rue du Gué Robert, 44000 Nantes. | Poste.io identifies Analogic s.r.o. in Klatovy, Czech Republic, and says it has been shipping since 2014. |
| Headquarters | Nantes, France | Klatovy, Czech Republic |
| Integrations | The project says Modoboa integrates with Postfix and Dovecot and can use MySQL, MariaDB, PostgreSQL, or SQLite as its central database. | The documentation describes an Elasticsearch integration for PRO log viewing and names Uptime Kuma, Prometheus, and Grafana as external monitoring systems that can use its monitoring API. |
| Mail features | The generated mail server includes webmail, calendar and address book management, filtering rules, auto-responder, and administrator tools. | It supports SMTP, IMAP, POP3, HTTPS webmail, redirects, aliases, vacation replies, Sieve filtering, and autodiscovery. |
| Monitoring | Built-in graphics show message distribution by type and average message size. | An authenticated, read-only health and metrics API is available for external monitoring, is disabled by default, and cannot read email or change settings. |
| Support | The project offers paid installation or upgrade assistance, help with specific issues, and annual maintenance services. | The pricing page includes email support with PRO and PRO+, while FREE is marked as not including it. |