Private/Migration/CloudData/Invoke-GetDupePrefix.ps1
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function Invoke-GetDupePrefix { param ( [Parameter()] $FilePath, [Parameter()] $PoshPath, [Parameter()] [switch] $Target, [Parameter()] $Data ) $Data = Import-Clixml $FilePath if ($Target) { $FileStamp = 'Local_Target_Dupes_{0}.csv' -f [DateTime]::Now.ToString('yyyy-MM-dd-hhmm') } else { $FileStamp = 'Local_Source_Dupes_{0}.csv' -f [DateTime]::Now.ToString('yyyy-MM-dd-hhmm') } $Hash = @{ } $RecipientList = $Data | Where-Object { $_.RecipientTypeDetails -notmatch 'DiscoveryMailbox|MailContact|GuestMailUser' } foreach ($Recipient in $RecipientList) { foreach ($Email in $Recipient.EmailAddresses) { if ($Email -like 'SMTP:*' ) { $Address = ($Email -split ':')[1] $Prefix = ($Address -split '@')[0] if ($Hash.ContainsKey($Prefix) -and $Hash[$Prefix]['PrimarySmtpAddress'] -ne $Recipient.PrimarySmtpAddress ) { Get-DupesLocal -Prefix $Prefix -Address $Address -Hash $Hash -Recipient $Recipient | Export-Csv (Join-Path $PoshPath $FileStamp) -NoTypeInformation -Append } else { $Hash[$Prefix] = @{ DisplayName = $Recipient.DisplayName Address = $Address PrimarySmtpAddress = $Recipient.PrimarySmtpAddress RecipientType = $Recipient.RecipientType RecipientTypeDetails = $Recipient.RecipientTypeDetails EmailAddresses = @($Recipient.EmailAddresses) -match [regex]::Escape(":$Prefix@") -join '|' } } } } } $Hash } |