Portico Developer Guide
Card Security Code (CVV2, CVC2, CID)
Alex Sample, alex.sample@gmail.com Marketing Team, contact@business-domain.org Use code with caution. Copied to clipboard
: Use a service or script to ping the mail server (SMTP check) to confirm the inbox actually exists without sending a real email. valid_mails.txt
: Ensure each address contains exactly one @ symbol and a valid domain (e.g., .com , .net ). Alex Sample, alex
: Save the file with UTF-8 encoding to ensure any special characters in names or domains are handled correctly. Advanced Usage (CSV-Style) If youtxt or .csv file. Example Extended Content: : Save the file with UTF-8 encoding to
: Remove any duplicate entries to keep the file clean.
The most common format is a simple list with one email address per line. This format is easily readable by scripts in languages like PHP , Python , or Django .