How can one troubleshoot and resolve PHPMailer errors related to mail function instantiation?

To troubleshoot and resolve PHPMailer errors related to mail function instantiation, ensure that you have correctly configured the SMTP settings in your PHPMailer script. Check that the SMTP host, username, password, and port are set correctly. Additionally, make sure that the SMTP connection is secure if required (using SSL or TLS). 

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require 'vendor/autoload.php';

$mail = new PHPMailer(true);

$mail->isSMTP();
$mail->Host = 'smtp.example.com';
$mail->SMTPAuth = true;
$mail->Username = 'your@example.com';
$mail->Password = 'your_password';
$mail->SMTPSecure = 'tls';
$mail->Port = 587;

// Rest of your mailing code here

Keywords

PHPMailer mail function instantiation troubleshooting errors

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