What are the potential pitfalls of using a custom SMTP function for sending emails in PHP?

One potential pitfall of using a custom SMTP function for sending emails in PHP is that it may not handle errors or exceptions properly, leading to undelivered emails or other issues. To solve this, you can implement error handling and logging in your custom SMTP function to track any problems that may arise during the email sending process. 

function custom_smtp_send_email($to, $subject, $message) {
    $mail = new PHPMailer(true);
    
    try {
        // SMTP configuration and email sending code here
        
        // Log successful email sending
        error_log('Email sent successfully to ' . $to);
    } catch (Exception $e) {
        // Log any errors that occur during email sending
        error_log('Error sending email: ' . $e->getMessage());
    }
}

// Example usage
custom_smtp_send_email('recipient@example.com', 'Test Email', 'This is a test email.');

Keywords

custom SMTP function sending emails PHP potential pitfalls error types

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