Health Mail Secure is a mobile application that allows healthcare professionals in France to access their MSSanté secure messaging.
These uses are governed by MSSanté standards #1 & #2 under the aegis of the Digital Health Agency.
This messaging is hosted by the servers of DEDALUS HEALTHCARE FRANCE, a company specializing in digital health solutions.

The Health Mail Secure app offers a unique user experience, with an intuitive interface and advanced features.
It allows healthcare professionals to:

View their messages, including attachments, securely
Write new messages, with the possibility of inserting attachments
Manage their contacts
Search messages
The Health Mail Secure app is available for free on the App Store and Google Play Store.

Main features:

Secure access to messaging in the MSSanté trusted space (https://mssante.fr)
Intuitive and easy-to-use interface
Advanced features such as access to the national directory of healthcare professionals

Benefits :

Secure: MSSanté messaging is hosted on secure servers and messages are end-to-end encrypted.
Practical: the mobile application allows healthcare professionals to access their messaging with ease, from their smartphone or tablet.
Advanced: the application offers advanced features such as electronic signature, which facilitate the work of healthcare professionals.
Disadvantages

The application is only available in French.