As well as letting you know whether or not the MDaemon server is running, the MDaemon envelope icon in the system tray will also change colour depending on the current server status.
Where is the envelope icon?
When MDaemon is running as a system service it will show a status icon in the system tray. Unfortunately the latest Microsoft Operating systems restrict running services from interacting with the desktop automatically. Within Windows 7 and Windows Server 2008 you will only see the MDaemon system tray icon after you have launched the MDaemon configuration session from the start menu at least once as the logged in user. You can then close the MDaemon configuration session and the icon will remain.