The only supported browser for using Mail Express File Drop with the Java Upload Manager is Internet Explorer. The Java Upload Manager does not work on Mac computers. You can use Chrome on a Mac for Mail Express as long as you use the regular upload option, but you won't be able to enter text into the email message box.
Other browsers will have problems working with Mail Express as newer versions don't have the NPAPI plugin support and scripting required by the Mail Express application.
If you are using a Mac and need to transfer a file larger than 4GB, please contact AskOtago:
Tel +64 3 479 7000 or 0800 80 80 98