To add a custom MIME type to a hosted domain in the Unity Control Panel start by choosing “My Services” and then “Hosted Services” from the drop down.
Once there click on the “Web” link from the list next to the domain you wish to add the custom MIME type to.
Now select the “MIME types” icon from the list and click the “Add MIME type” button.
Enter the file extension and the MIME type and click the “Submit” button.
If you need any assistance with this process, or encounter any issues, please don’t hesitate to contact our Technical Support Department.