Get-ExchangeServer | where{$_.name -like‘wendy*‘} | %{    if(Test-Connection $_.name -Count 1 -Quiet) {        $OS = Get-WmiObject -Class Win32_OperatingSystem -ComputerName $_.name                     $uptime = (Get-Date) - $OS.ConvertToDateTime($OS.LastBootUpTime)                     $report= "$($_.name) has been up for {0} days, {1} hours and {2} minutes." `        -f $uptime.Days, $uptime.Hours, $uptime.Minutes + "`r"    }}$msg=$msg+$report  Send-MailMessage -To xxxx -From xxxx `-Subject "Server Uptime" -Body $msg -SmtpServer xxxxx