Exchange Online (Microsoft 365/Office 365): Run PowerShell as administrator and connect to Exchange Online PowerShell.

Exchange on-premises: Run Exchange Management Shell as administrator.

You must connect with the proper tools before you run the script: The MailboxSizeReport.ps1 PowerShell script works for: Information get mailbox size of all users PowerShell script

Result mailbox size report of all users in Exchange.

Get mailbox size of all users with PowerShell script.

Information get mailbox size of all users PowerShell script.

$o365Session = New-PSSession -ConfigurationName Microsoft. $userName = Get-Credential -UserName $userName -Message 'Enter Office 365 Admin Credentials' You need to replace your own Office 365 tenant name and admin credentials. The following powershell script gets current storage size and storage quota of all the office 365 groups. To get the storage used by all Office 365 Groups, first, we need to get sharepoint site url for all the office 365 groups by using Exchange Online cmdlet Get-UnifiedGroup. Write-Host 'Storage used (GB): ' ($StorageSize/1024) ' GB' -ForegroundColor Yellow Get the current Storage Size for all Office 365 Groups Write-Host 'Storage used (MB): ' $StorageSize ' MB' -ForegroundColor Yellow $StorageSize =$O365GroupSite.StorageUsageCurrent $O365GroupSiteUrl =' $O365GroupSite = Get-SPOSite -Identity $O365GroupSiteUrl

Connect-SPOService -Url -Credential run the below script after replacing the and with your own tenant name and group name.

Before proceed, run the following command to connect Sharepoint Online powershell module. We can use the SharePoint Online Powershell cmdlet Get-SPOSite to get current site storage size and storage quota. In this post, I am going to write powershel script to find storage used by office 365 groups. Often, Office 365 administrators need to find the storage used by Office 365 groups since this storage gets the storage quota of the SharePoint Site Collections. You can only access these site collections by using PowerShell or through URL ( documents”). Office 365 Groups are nothing but a hidden site collection with mailbox that are not visible in Site Collections view in Office 365 tenant Admin portal.

Check outlook storage size