Write-Host "Configuring DNS suffix search list..."

    # Read suffixes from script arguments
    $Suffixes = @()

    for ($i = 0; $i -lt $args.Count; $i++) {
        if (![string]::IsNullOrWhiteSpace($args[$i])) {
            $Suffixes += $args[$i]
        }
    }

    # Check if at least one suffix is provided
    if ($Suffixes.Count -eq 0) {
        throw "No DNS suffixes provided in script arguments."
    }
    $ValidSuffixPattern = '^([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,}$'
    $ValidatedSuffixes = @()
      foreach ($suffix in $Suffixes) {
    if ($suffix -match $ValidSuffixPattern) {
        $ValidatedSuffixes += $suffix
    } else {
        Write-Host "[ERROR] Invalid DNS suffix format: $suffix"
        throw "Invalid DNS suffix: $suffix. Must be a valid domain name."
    }
}
$OriginalSuffixes = (Get-DnsClientGlobalSetting).SuffixSearchList

   try {
    Set-DnsClientGlobalSetting -SuffixSearchList $ValidatedSuffixes -ErrorAction Stop
    Write-Host "DNS suffix search list configured successfully."
} catch {
    Write-Host "[ERROR] Failed to set DNS suffixes: $($_.Exception.Message)"
    # Rollback to original
    Set-DnsClientGlobalSetting -SuffixSearchList $OriginalSuffixes -ErrorAction SilentlyContinue
    throw
}

    Write-Host "Refreshing Group Policy..."

    # Refresh Group Policy
    gpupdate /force

    Write-Host "Group Policy updated successfully."