MCG University

Outlook Storage Cleanup

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.

Getting Started

  1. Open Outlook on the Office 365 Portal
  2. Navigate to the gear on the upper right-hand corner
  3. Scroll-down and click on View all Outlook Settings

Accessing Settings on Microsoft 365 Outlook

  1. Settings dialog pops-up
  2. Click on General

Storage Information

  1. Choose Storage
  2. Allow for your storage utilization to load
  3. Review which folder you will want to free up space

DISCLAIMER: Items will be permanently deleted.

Wrapping Up

  1. After you have reviewed each folder accordingly, click on the drop-down arrow next to Empty
  2. Choose the option of months you would like to delete
  3. For example here we will be deleting 3 months and older