Why is filter_var($email, FILTER_VALIDATE_EMAIL) the "GOLD" standard still? : r/PHPhelp
PHP Mail Injection Protection and E-Mail Validation - A Beginner's Tour - CodeProject
Mastering Email Validation in PHP: A Comprehensive Guide
GitHub - stymiee/email-validator: The Email Validator library builds upon PHP's built in `filter_var($emailAddress, FILTER_VALIDATE_EMAIL);` by adding a default MX record check. It also offers additional validation against disposable email addresses ...
php - how to show user sender name when contact form submitted - Stack Overflow
Why mail() is dangerous in PHP | Sonar
Validate Email in PHP using FILTER_VALIDATE_EMAIL - YouTube
You Should Be Using PHP Filtering Functions, Part 1 | Tom McFarlin