134 votes52 comments · The new Outlook on the web (Office 365) » Mail · Flag idea as inappropriate… · Admin →
Hey, thanks for your feedback! This option will be added back to OWA in the next couple months. We’re working on improving the service that powers Clean Up, and then we’ll add this option back!
ColinJonathan Cotta commented
I work in an Enterprise environment, and our store-level users with Microsoft F1 licenses are unable to access this very useful tool in the new Office 365 Outlook Online. They do not have Desktop Application access, and as such are unable to manage their mailbox size through this previously available advanced setting.Jonathan Cotta supported this idea ·