If you want to upload or move MDaemon emails to Office 365 Small Business account then I would like to suggest you to try MDaemon Migration Tool. This wizard is an all in one email migration application for MDaemon or WorldClient users. You can take the help of this utility to export MDaemon mailbox data to Office 365 directly. All you have to do is follow the below steps.

Steps to upload MDaemon mailbox to Office 365 account;

1. Launch Advik MDaemon MDaemon Migration Tool.
2. Click Add Files and add MDaemon mailbox folders.
3. Select saving option as Office 365.
4. Enter Office 365 login credentials and click Convert.

Finished! This is how you can export MDaemon emails to Office 365 as well as many other cloud email servers.

MDaemon to PST Conversion – For the Conversion of MDaemon Mailbox, address book, calendar, Task, journals, etc. to PST format. The software has the best and useful features for users to easily import all data from MDaemon to PST in the accurate format and accurate folder structure. Support all Outlook editions including Outlook 2016. And after MDaemon to PST Conversion users can also import converted PST files to MS Outlook Exchange, Outlook 365, outlook.com, etc. Read More https://gallery.technet.microsoft.com/office/Import-MDaemon-to-PST-287c70fb