| Developer(s) | The Horde Core Team |
|---|---|
| Stable release | H4 2.0.1 / April 20 2011 |
| Operating system | Cross-platform |
| Type | E-Mail Filtering |
| License | GNU General Public License |
| Website | http://www.horde.org/ingo/ |
Ingo is an open-source PHP-based mail filter frontend. Ingo is a component of the Horde project.