MailboxSizes-Individual.ps1

##For getting mailbox sizes for individuals in your Office 365 environment.##

$UserCredential = Get-Credential
$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection
Import-PSSession $Session

$id = read-Host 'Email Address:'

Get-MailboxStatistics -identity $id | Format-List StorageLimitStatus,TotalItemSize,TotalDeletedItemSize,ItemCount,DeletedItemCount