What is the significance of including the class.smtp.php file when using PHP mailer?

When using PHP mailer, including the class.smtp.php file is significant because it provides functionality for sending emails using SMTP (Simple Mail Transfer Protocol). This is important when sending emails from a server that requires authentication or when dealing with email delivery issues. Including this file allows PHP mailer to utilize SMTP for sending emails securely and reliably. 

// Include the class.smtp.php file
require 'path/to/class.smtp.php';

// Your PHP mailer code using SMTP
$mail = new PHPMailer;
$mail->isSMTP();
$mail->Host = 'smtp.example.com';
$mail->SMTPAuth = true;
$mail->Username = 'your@example.com';
$mail->Password = 'yourpassword';
$mail->SMTPSecure = 'tls';
$mail->Port = 587;

// Rest of your email sending code

Keywords

PHP mailer class.smtp.php significance email delivery

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