To send email with attchments :

JavaScript
{
  "Name": "FileToNAS",
  "Autostart": false,
  "Trigger": {
    "Type": "File",
    "Name": "Incoming",
    "Parameters": {
      "Pool": "D:\\Poolsmtp1",
      "Filter": "*.*",
      "NewName": "Invoice_1_{{Funcs.now(\"yyyy-MM-dd HH-mm\")}}.pdf"
    }
  },
  "Actions": [
  {
      "Type": "SMTP",
      "Name": "SendInvoiceEmail",
      "Parameters": {
        "From": "smtp@runos.io",
        "FromName": "RUNOS System",
        "To": "dlolah10@outlook.sa",
        "Cc": "dldardawd10@gmail.com",
        "Bcc": "lukman3@hassi.net",
        "Subject": "Invoice {{Funcs.now(\"yyyy-MM-dd\")}} {{InitialData.Key}}  {{GetWeather.Response.Results.current_weather.temperature}} °C.",
        "Body": "%userdocuments%\\runos\\Templates\\email_template.txt",
        "Signatur": "%userdocuments%\\runos\\Templates\\email_template.txt",
        "Attachments": "{{Trigger.Response.Results.first.FilePath}}; %userdocuments%\\runos\\Templates\\Test AGBs.pdf",
        "SmtpServer": "smtp.ionos.de",
        "SmtpPort": 587,
        "SmtpUser": "smtp@runos.io",
        "SmtpPassword": "password",
        "UseSsl": true,
        "SaveInSent": false,
        "ImapServer": "imap.ionos.de",
        "ImapPort": 993,
        "ImapUser": "smtp@runos.io",
        "ImapPassword": "password",
        "Timeout": 120
      }
    }
]
}