[vluzzy]

# Advanced Backup Script with Compression and Email Notification

# Configuration
$sourceFolder = "C:\Source"
$destinationFolder = "C:\Backup"
$zipFileName = "Backup_$(Get-Date -Format 'yyyyMMdd_HHmmss').zip"
$zipFilePath = Join-Path $destinationFolder $zipFileName
$logFilePath = "C:\Backup\backup_log.txt"
$recipientEmail = "your.email@example.com"
$smtpServer = "smtp.example.com"
$smtpFrom = "backup@example.com"
$smtpSubjectSuccess = "Backup Successful"
$smtpSubjectFailure = "Backup Failed"

# Logging function
function Log($message) {
    $timestamp = Get-Date -Format "yyyy-MM-dd HH:mms"
    Add-Content -Path $logFilePath -Value "$timestamp - $message"
}

# Backup files
try {
    Log "Starting backup of files from $sourceFolder to $zipFilePath"
   
    if (-not (Test-Path $destinationFolder)) {
        New-Item -ItemType Directory -Force -Path $destinationFolder | Out-Null
    }

    Compress-Archive -Path $sourceFolder -DestinationPath $zipFilePath -Force

    Log "Backup completed successfully."
   
    # Send email notification
    $smtpBody = "Backup completed successfully. Attached is the backup file."
    Send-MailMessage -To $recipientEmail -From $smtpFrom -Subject $smtpSubjectSuccess -Body $smtpBody -Attachments $zipFilePath -SmtpServer $smtpServer
}
catch {
    # Handle errors
    $errorMessage = $_.Exception.Message
    Log "Error during backup: $errorMessage"
   
    # Send email notification for failure
    $smtpBodyFailure = "Backup failed with the following error: $errorMessage"
    Send-MailMessage -To $recipientEmail -From $smtpFrom -Subject $smtpSubjectFailure -Body $smtpBodyFailure -SmtpServer $smtpServer
}

# End of script

Explanation:

    The script sets configuration parameters such as source and destination folders, file names, email details, etc.
    It uses the Compress-Archive cmdlet to create a zip archive of the files.
    Logging is performed using a custom function Log.
    The script handles errors gracefully and sends an email notification in case of failure.
    It uses the Send-MailMessage cmdlet to send email notifications with or without attachments.