Microsoft Graph filter for Mail Message Categories in a different folder.

Hi,

How can I build a filter with Microsoft Graph via the Microsoft Graph Explorer to do the following:

For a specific folder (not the Inbox).

1. Display all mail messages with have either of a few categories set and only see the Subject, DateRecieved and Categories?

2. Display all mail messages with have any categories set (not blank) and only see the Subject, DateRecieved?

Thanks,

Ward.