Hi Swapnil,
You can have a weekly script checking each mailbox recoverable items size. Something like it:
$AllUsers = Get-Mailbox -RecipientTypeDetails UserMailbox -ResultSize Unlimited | Select-Object PrimarySMTPAddress
$a = 0
foreach ($Mailbox in $AllUsers)
{
Get-EXOMailboxFolderStatistics -Identity $Mailbox.PrimarySMTPAddress -FolderScope RecoverableItems | Where-Object {$_.FolderPath -eq "/Recoverable Items"} | Select-Object Identity,@{name="FolderAndSubFolderSize"; expression={[math]::Round(($_.FolderAndSubFolderSize.ToString().Split("(")[1].Split(" ")[0].Replace(",","")/1MB),2)}} | export-csv D:\All-Users-Folder-Size.csv -Append -NoTypeInformation
$a++
Write-host "Processing Mailbox" $Mailbox.PrimarySMTPAddress
}
#Saving output for sending the report via email
Import-csv D:\All-Users-Folder-Size.csv | Sort-Object {[int]$_.FolderAndSubFolderSize}, Identity -Descending | Export-csv D:\All-users-Sorted.csv -NoTypeInformation
Remove-Item -Path D:\All-Users-Folder-Size.csv
Send-MailMessage -From 'email address removed for privacy reasons' -To 'email address removed for privacy reasons'-Subject "Recoverable Items Report' -Body "Recoverable Items Report" -Attachments D:\All-users-Sorted.csv -Priority High -DeliveryNotificationOption OnSuccess, OnFailure -SmtpServer 'smtp.contoso.com'
