In here, we will see how MDaemon has developed over the years. Starting as a basic email server, it developed into a full featured secured messaging server. Best part is, it remains affordable.
http://blogs.mdaemon.com/index.php/2019/01/18/the-evolution-of-mdaemon-1996-2019-beyond/?fbclid=IwAR0P1KpKAOBhOMbeJWRiMpL6IOit4C0iKSNiGl8B0P9p812FszvdfftwNaE