To export the MDaemon mailbox to PST format, the best technical method is to use eSoftTools MSG Converter software. This tool get assist that   the exporting process is completed with all information or fulfilling all user requirements. While MDaemon locally stores  files into the mailbox, Outlook stores files in the PST format on a cloud-based server. The tool maintains the file in a hierarchical form. 

Read more- MDaemon to Outlook