Ok thanks. Neither option is as good as the Search Folders in the Outlook App unfortunately as this spans all folders. My users have many subfolders to organise their mailbox so having to sort emails by size in each folder is too time
consuming.
I tried your option to Search all folders ticking the Attachments option but it it only brings back results if you enter a search term which isn't suitable for what we're trying to achieve.
I appreciate that Outlook on the Web and the Outlook desktop app are different products but it seems counterintuitive not to have certain useful functionality on both platforms, especially the lack of an option to easily find large emails, remove attachments
from emails whilst retaining the messages and resizing images from within outlook on the web before sending when all of these functions help to better manage ones mailbox size, something which is more likely to be needed for someone who operates in a deskless
environment like a kiosk worker. They are more likely to have a more restricted mailbox capacity that needs better options to control their storage limits.