These are the minimum recommended system requirements for MDaemon Messaging Server to run. This does not take into account running multiple programs simultaneously. To run several programs on the computer at the same time, that computer should exceed these recommendations.
The current version of MDaemon Messaging Server is 15.5.3
Note: Like all mail servers MDaemon is heavily I/O bound - performance can be dramatically improved with faster hard drives.
For more information, read the latest MDaemon Messaging Server Release Notes