Backup Exchange Online Mailbox

write-host "INIZIO PROCEDURA"

$password = "password"
$user_management = "username"
$Mailbox = "mailbox@domain.com"
$ExportLocation = "c:\export"

$datetime = get-date -format yyyyMMddHHmmss
$SearchName = "$($Mailbox)_$($datetime)_PST"

$pass_management = $password | convertto-securestring -asplaintext -force
$UserCredential = new-object -typename System.Management.Automation.PSCredential -argumentlist $user_management, $pass_management

write-host "Connessione a Exchange Online..."
connect-ExchangeOnline -Credential $UserCredential -ShowBanner:$false
Connect-IPPSSession -Credential $UserCredential

write-host "Creo ricerca compliance $SearchName..."
New-ComplianceSearch -Name $SearchName -ExchangeLocation $Mailbox -AllowNotFoundExchangeLocationsEnabled $true

write-host "Avvio ricerca..."
Start-ComplianceSearch -Identity $SearchName

while ((Get-ComplianceSearch $SearchName | Select-Object -ExpandProperty Status) -ne "Completed") {
	Start-Sleep -s 2
	Write-Host -NoNewline "."
}
write-host "Ricerca $SearchName completata!"

write-host "Creo ricerca export $SearchName..."
New-ComplianceSearchAction -SearchName $SearchName -Export -Format FxStream -ExchangeArchiveFormat PerUserPst -Scope BothIndexedAndUnindexedItems -EnableDedupe $true -SharePointArchiveFormat IndividualMessage -IncludeSharePointDocumentVersions $true 
Start-Sleep -s 5 

While (-Not ((Get-ChildItem -Path $($env:LOCALAPPDATA + "\Apps\2.0\") -Filter microsoft.office.client.discovery.unifiedexporttool.exe -Recurse).FullName | Where-Object{ $_ -notmatch "_none_" } | Select-Object -First 1)){
	write-host "Scarico Unified Export Tool da Azure."
	$Manifest = "https://complianceclientsdf.blob.core.windows.net/v16/Microsoft.Office.Client.Discovery.UnifiedExportTool.application"
	$ElevatePermissions = $true
	Try {
		Add-Type -AssemblyName System.Deployment

		write-host " Inizializzo installazione ClickOnce $Manifest"
		$RemoteURI = [URI]::New( $Manifest , [UriKind]::Absolute)
		if (-not  $Manifest){
			throw "Url di connessione non valido '$ConnectionUri'"
		}
		$HostingManager = New-Object System.Deployment.Application.InPlaceHostingManager -ArgumentList $RemoteURI , $False
		Register-ObjectEvent -InputObject $HostingManager -EventName GetManifestCompleted -Action { 
			new-event -SourceIdentifier "ManifestDownloadComplete"
		} | Out-Null
		Register-ObjectEvent -InputObject $HostingManager -EventName DownloadApplicationCompleted -Action { 
			new-event -SourceIdentifier "DownloadApplicationCompleted"
		} | Out-Null
		$HostingManager.GetManifestAsync()
		$event = Wait-Event -SourceIdentifier "ManifestDownloadComplete" -Timeout 15
		if ($event ) {
			$event | Remove-Event

			write-host "Manifest Clickonce scaricato"
			$HostingManager.AssertApplicationRequirements($ElevatePermissions)
			$HostingManager.DownloadApplicationAsync()
			$event = Wait-Event -SourceIdentifier "DownloadApplicationCompleted" -Timeout 60
			if ($event ) {
				$event | Remove-Event
				write-host "ClickOnce scaricato"
			}
			else {
				write-host "ClickOnce non scaricato entro 60s" -level "ERROR"
			}
		}
		else {
			Write-error "ClickOnce Manifest non scararicato in 15s" -level "ERROR"
		}
	}
	finally {
		Get-EventSubscriber|? {$_.SourceObject.ToString() -eq 'System.Deployment.Application.InPlaceHostingManager'} | Unregister-Event
	}
}


$ExportExe = ((Get-ChildItem -Path $($env:LOCALAPPDATA + "\Apps\2.0\") -Filter microsoft.office.client.discovery.unifiedexporttool.exe -Recurse).FullName | Where-Object{ $_ -notmatch "_none_" } | Select-Object -First 1)
$ExportName = $SearchName + "_Export"

$ExportDetails = Get-ComplianceSearchAction -Identity $ExportName -IncludeCredential -Details | Select-Object * 

write-host "Inizio Export $ExportName"
while ( (Get-ComplianceSearchAction -Identity $ExportName -IncludeCredential -Details).status -ne "Completed" ) {
	Start-Sleep -s 2
	Write-Host -NoNewline "."
}

$ExportDetails = Get-ComplianceSearchAction -Identity $ExportName -IncludeCredential -Details | Select-Object * 
$ExportDetails = $ExportDetails.Results.split(";")
$ExportContainerUrl = $ExportDetails[0].trimStart("Container url: ")
$ExportSasToken = $ExportDetails[1].trimStart(" SAS token: ")
$ExportEstSize = [double]($ExportDetails[18].TrimStart(" Total estimated bytes: ")).replace(".","")
$ExportTransferred = [double]($ExportDetails[20].TrimStart(" Total transferred bytes: ")).replace(".","")
$ExportProgress = $ExportDetails[22].TrimStart(" Progress: ").TrimEnd("%")
$ExportStatus = $ExportDetails[25].TrimStart(" Export status: ")

write-host "Scarico Export su: $ExportLocation\$SearchName"
$Arguments = "-name ""$SearchName""","-source ""$ExportContainerUrl""","-key ""$ExportSasToken""","-dest ""$ExportLocation""","-trace true"
Start-Process -FilePath "$ExportExe" -ArgumentList $Arguments

while(Get-Process microsoft.office.client.discovery.unifiedexporttool -ErrorAction SilentlyContinue){
	$Downloaded = Get-ChildItem $ExportLocation\$SearchName -Recurse | Measure-Object -Property Length -Sum | Select-Object -ExpandProperty Sum
	Write-Progress -Id 1 -Activity "Esportazione in corso...." -Status "Completato..." -PercentComplete $ExportProgress -ErrorAction Continue
	if ( ($Downloaded/$ExportEstSize*100) -gt "100" ) {
		$percent = "100"
	} else {
		$percent = ($Downloaded/$ExportEstSize*100)
	}
	if ("Completed" -notlike $ExportStatus){
		Write-Progress -Id 2 -Activity "Download in corso" -Status "Completato..." -PercentComplete $percent -CurrentOperation "$Downloaded/$ExportEstSize bytes scaricati." -ErrorAction Continue
	} else {
		Write-Progress -Id 2 -Activity "Download in corso" -Status "Completato..." -PercentComplete $percent -CurrentOperation "$Downloaded/$ExportTransferred bytes scaricati." -ErrorAction Continue
	}
	Start-Sleep 10
	$ExportDetails = Get-ComplianceSearchAction -Identity $ExportName -IncludeCredential -Details
	$ExportDetails = $ExportDetails.Results.split(";")
	$ExportEstSize = [double]($ExportDetails[18].TrimStart(" Total estimated bytes: ").replace(".",""))
	$ExportTransferred = [double]($ExportDetails[20].TrimStart(" Total transferred bytes: ").replace(".",""))
	$ExportProgress = ($ExportDetails[22].TrimStart(" Progress: ").TrimEnd("%")).substring(0,($ExportDetails[22].TrimStart(" Progress: ").TrimEnd("%")).IndexOf(","))
	$ExportStatus = $ExportDetails[25].TrimStart(" Export status: ")
	Write-Host -NoNewline "."

}
write-host "Download PST Completato su $ExportLocation\$SearchName"

write-host "Cancello ricerca $SearchName"
Get-ComplianceSearch -Identity $SearchName | remove-compliancesearch -confirm:$false
Disconnect-ExchangeOnline -Confirm:$false