Does Mail.app support Exchange "categories" on emails? I've got a team who are all running Outlook on Windows to log into a shared inbox and use "Categories" to delegate incoming work.

A new team member wants to use her Mac, running Mail.app.  I had no problem getting the account set up, but the Category markings are not visible anywhere in Mail.app.  (Flags are, read/unread are, folder structure is, just not Categories.)

Is there a visibility setting somewhere that I'm missing?  Or will I need to get Office Business for Mac so she can do this work in Outlook?
Mail.app has no categories, but the Outlook 2011 on Mac has.

Also making Mail communicate with Exchange server is tricky, however Outlook 2011 will do that.

So she can still use her mac with Outlook for work, and mail for all other emails.