Exchange-Online-PowerShell-Recipes

Get The Largest Folders By Size For A User Mailbox

Problem

You want to find the largest folders by size for a user’s mailbox. Mailbox includes email, calendar, contacts, and tasks.

Solution

Get-MailboxFolderStatistics -Identity "user@domain.com" |
Select @{Name="Folder";Expression={"$($_.Name) [$($_.FolderType)]"}},
@{Name="FolderSizeMB";Expression={[math]::Round($_.FolderSize.ToString().Split(" ")[0],2)}},
ItemsInFolder |
Sort-Object FolderSizeMB -Descending

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