This time I’m sharing a PowerShell script that allows to get all the Guests Users in an Office 365 teantn and export them to a CSV file.You can download the script from the following URL: How to export to a CSV all file all the guests users in an Office 365 tenant
############################################################################################################################################ # Script that allows to get all the members of all the Guest Users in an Office 365 tenant and export the results to a CSV file. # Required Parameters: # ->sCSVFilenName: Name of the file to be generated ############################################################################################################################################ $host.Runspace.ThreadOptions = "ReuseThread" #Definition of the function that get all the members of all the Guest Users in an Office 365 tenant and export the results to a CSV file function Get-O365GuestsUsers { param($sCSVFileName) Try { [array]$O365GuestsUsers = $null $O365TenantGuestsUsers=Get-Recipient -RecipientTypeDetails GuestMailUser #| Format-Table DisplayName, Name foreach ($O365GuestUser in $O365TenantGuestsUsers) { $O365GuestsUsers=New-Object PSObject $O365GuestsUsers | Add-Member NoteProperty -Name "Guest User DisplayName" -Value $O365GuestUser.DisplayName $O365GuestsUsers | Add-Member NoteProperty -Name "Guest User Name" -Value $O365GuestUser.Name $O365GuestsUsers | Add-Member NoteProperty -Name "SMTP Mail Address" -Value $O365GuestUser.PrimarySmtpAddress $O365GuestsUsers | Add-Member NoteProperty -Name "Guest User Creation Date" -Value $O365GuestUser.WhenCreated $O365AllGuestsUsers+=$O365GuestsUsers } $O365AllGuestsUsers | Export-Csv $sCSVFileName } catch [System.Exception] { Write-Host -ForegroundColor Red $_.Exception.ToString() } } #Connection to Office 365 $sUserName="<Your_Office365_Admin_Account>" $sMessage="Introduce your Office 365 Credentials" #Connection to Office 365 $O365Cred=Get-Credential -UserName $sUserName -Message $sMessage #Creating an EXO PowerShell session $PSSession = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $O365Cred -Authentication Basic -AllowRedirection Import-PSSession $PSSession $sCSVFileName="AllTenantGuestsUsers.csv" #Getting Tenant Guests Users Get-O365GuestsUsers -sCSVFileName $sCSVFileName