infoSource is MDaemon partner for both On-Premise(Private) and Cloud infrastructures. We have been working with ALT-N for the past 12 years.
WorldClient (MDaemon's Web-Based Email Client) provides easy access to your inbox, calendar, contacts, tasks, notes, and documents from the office, home, or any location that has Internet connectivity. It's automatic update feature makes it easy to maintain. Provided free with MDaemon Messaging Server, WorldClient sends and receives messages from any connected computer, smartphone, or tablet using a web browser such as Internet Explorer, Chrome, Firefox, Opera, and Safari. It runs on computers equipped with Windows, Mac OS X, and Linux and supports SSL conections.