Powershell Ping Gmail Alert

# To call from task scheduler:
#   program: powershell
#   args: -File "C:\Task Scheduler\PingAlert.ps1" -server ServerName -subject "Azure VPN Down" -alertees "helpdesk@mhasp.org,admin@itdata.com"

# command line: powershell -File "C:\Task Scheduler\PingAlert.ps1" -server ServerName -subject "Azure VPN Down" -alertees
"helpdesk@domain.org,admin@domain.com"

Param (
    [string] $server = "ServerName",
    [string] $subject = "Test Subject",
    [string] $alertees = "comma delimited emails")

# Function to send email - function has to be defined before it's called.
function sendAlertEmail ()
{
    Param ([string] $message, [string] $subject)

    $user = "italerts@domain.org"
    $pass = ConvertTo-SecureString -String "P2ssw0rd" -AsPlainText -Force
    $cred = New-Object System.Management.Automation.PSCredential $user, $pass
    $mailParam = @{
        To = $alertees
        From = "IT Alerts <italerts@domain.org>"
        Subject = $subject
        Body = $message
        SmtpServer = "smtp.gmail.com"
        Port = 587
        Credential = $cred
    }
    Send-MailMessage @mailParam -UseSsl
}

if (Test-Connection $server -Quiet)
{
    "Passed"
}
else
{
    sendAlertEmail -message "Failed to ping $server from $env:computername" -subject "[IT Alerts] $subject"
    "Email Sent, will pause the script for about an hour."
    Start-Sleep -Seconds 3500
}