isSendmail(); // Use our local mailer (sendmail) $mail->From = 'your-email@example.com'; $mail->addAddress('recipient-email@example.com', 'Recipient Name'); $mail->Subject = 'PHPMailer isSendmail() Example'; $mail->Body = 'This email was sent using PHPMailer and the isSendmail() method.'; if (!$mail->send()) { echo 'Mailer Error: ' . $mail->ErrorInfo; } else { echo 'Message sent!'; } ?>This code sets up a new PHPMailer object and calls the isSendmail() method to use the local mailer. Then, it sets the email's sender and recipient addresses, subject, and body content. Finally, it sends the email and checks for any errors. PHPMailer is a popular package library with nearly 10,000 stars on Github. It is widely used by developers and is frequently updated to support new features and security enhancements.