How to run retry the commands multiple times in TRY block

Question

Here in below code in try block I want to retry the last three commands to run multiple times and then proceed with catch and finally

Answer 1

One way to try the 5th line 3 times is to use the Do Until functionality like below:

Try
{
$hostcomputer = hostname
$IP = "10.x.x.x"
$pso = New-PSSessionOption -SkipCACheck -SkipRevocationCheck -SkipCNCheck:$TRUE -ErrorAction Stop
$session = New-PSSession -Authentication Negotiate -ConnectionUri https://mail.test.com/powershell/?ExchClientVer=15.1 -ConfigurationName microsoft.exchange -SessionOption $pso -ErrorAction Stop


        [int]$retryCount = 0;
        Do{


         try{
            $retryCount++;
            import-pssession $session -allowclobber -ErrorAction Stop


         } catch [Exception]{

                Write-Warning "Try Number $retryCount"

                if($retryCount -eq 3){
                    $_ 
                    $_.GetType() 
                    $_.Exception 
                    $_.Exception.StackTrace 
                    throw 

                }
              }

        } #End of Do
        Until($retryCount -eq 3)


}
Catch
{
$ErrorMessage = $_.Exception.Message
$FailedItem = $Error
Send-MailMessage -From User1.test@test.com -To "User2@test.com" -Subject "DC2 - RPS Not Working" -SmtpServer smtp.test.net -Body "Error generated on $hostcomputer = $IP. The Error Message was:- $ErrorMessage."
$Text = "Connection Failed"
###You have to create .csv file manually and name the column as 'DC2'
$Text  | select @{l='DC2';e={$_}} | Export-Csv D:\DC2.csv -append
}

Finally 
{

$Time=Get-Date
if (!$Error) {
    $Time | select @{l='DC2';e={$_.DateTime}} | Export-Csv D:\DC2.csv -append
}

}