Orange mail'

You're referring to Orange Mail!

Orange Mail is a free, open-source, and self-hosted email client that allows you to manage your email accounts from a single interface. It's designed to be easy to use, customizable, and secure.

Some of the key features of Orange Mail include:

1. Multiple account support: You can connect multiple email accounts to Orange Mail, including Gmail, Yahoo, Outlook, and more.
2. Customizable interface: Orange Mail allows you to customize the look and feel of the interface to suit your preferences.
3. Advanced search: Orange Mail has a powerful search function that lets you quickly find specific emails.
4. Labeling and filtering: You can label and filter your emails to keep them organized and easy to find.
5. Encryption: Orange Mail supports encryption to keep your emails secure.
6. Integration with other apps: Orange Mail can be integrated with other apps and services, such as calendar and contacts.

Overall, Orange Mail is a great option for anyone looking for a free, open-source, and customizable email client.