Check email signatures

<#.
    .SYNOPSIS
    Check if User has signature for company policy.

    .DESCRIPTION
    This is a script to run at logon and check if the users have a specific signature in the repo. This will then update a file ona
	remote share

    .EXAMPLE
    .\Check-SignatureAdoption.ps1

    .NOTES
    File Name        : Check-SignatureAdoption.ps1
    Author           : /u/sup3rlativ3
    Prerequisites    : Powershell

#>

$SIG = "%AppData%\Roaming\Microsoft\Signatures\New Signature.htm"         # Sets SIG variable to the users local appdata signature file.
$FLAG = "\\SERVER\PATH\To\FILE.txt"  # Sets FLAG variable to the file for logging.
$NoRepeat = "$env:temp\completed.txt"
$a = Get-Date                        # Assigns the date and time to the variable.
$date = $a.ToShortDateString()       # Assigns the date in short format to the variable.
$time = $a.ToShortTimeString()       # Assigns the time in short format to the variable.
$SMTPServer = "smtpserver.internal.mydomain.com.au"



if(Test-Path $SIG) # Test if the file exists. If it does then do the following.
    {
    if(!(Test-Path $NoRepeat)) # Checks to make sure this hasn't been successful before. We don't want multiple reports of successful users.
        {
        Write-Host "You have adopted the email signature."     # Write to the console.
        Write-Host "Exiting..."                     # Write to the console.
		Add-Content $FLAG "Completed by $env:username at $date $time"   # Write to the file that it has been completed.
        Add-Content $NoRepeat "Completed by $env:username at $date $time"   # Write to the file that it has been completed.
        }
    }
else                   # If the signature file does NOT exist then do the following.
    {
        Try            # Try the following.
            {

            Send-MailMessage -From "$env:username@domain.com.au" -To "IT@mydomain.com.au" -Subject "$env:username does not have signature" -Body "user $env:username at $date $time on $env:COMPUTERNAME did not have the signature installed." -SmtpServer $SMTPServer
            }


        Catch          # If the above errors then do the following.
            {
                Send-MailMessage -From "$env:username@domain.com.au" -To "IT@mydomain.com.au" -Subject "HALP!!1!1" -Body "Unknown error for user $env:username at $date $time on $env:COMPUTERNAME" -SmtpServer $SMTPServer
                Start-Sleep -s 10                                                                   # Wait 10 seconds

            }
     }