Outlook.com used on a desktop device will give the best experience for cleaning up your email. If you prefer to use a mobile device, Outlook.com accessed via a mobile browser offers a cleanup experience focused on helping you delete your largest emails. You can also use the Outlook app and filter your inbox or other folder by "has attachments" to see items that have the largest impact to your Microsoft storage. 

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.