Hi Leandro, First, if you Outlook for Mac is not up-to-date, you can try to upgrade it to the latest version and use the filter again to see if it can make any difference. For more information, please refer to. If the issue persists, as a Outlook for Mac user, you can try to download and run Outlook for Mac search repair tool and check if the issue disappears. For your reference Automated troubleshooting tools Outlook Search Repair. On another hand, if all the suggestions above don’t work, it is recommended that please contact the dedicated support channel for Outlook for Mac via clicking Help Contact Support in the Outlook for Mac menu.
The dedicated engineers there are focusing on Outlook for Mac related issues, and they would give you some further assistance, thanks. Regards, Oliver.
![Microsoft outlook for mac Microsoft outlook for mac](/uploads/1/2/5/4/125420234/401907124.jpg)
In this screencast, David Wicks, director of Instructional Technology at Seattle Pacific University, shares how to create a Smart Folder to manage unread email messages in Microsoft Outlook 2011.