In this course of MCG University, we demonstrate how to cleanup your storage on Microsoft 365 Outlook when you receive a notification from Microsoft stating your mailbox is almost full. We show you how you can get this done through the online Outlook application. Note, this feature does not require a specific license to function.
Open Outlook on the Office 365 Portal
Navigate to the gear on the upper right-hand corner
Scroll-down and click on View all Outlook Settings
Accessing Settings on Microsoft 365 Outlook
Settings dialog pops-up
Click on General
Allow for your storage utilization to load
Review which folder you will want to free up space
DISCLAIMER: Items will be permanently deleted.
After you have reviewed each folder accordingly, click on the drop-down arrow next to Empty
Choose the option of months you would like to delete
For example here we will be deleting 3 months and older