How can one troubleshoot and debug email sending issues in PHP, especially when using PHPMailer?

To troubleshoot and debug email sending issues in PHP, especially when using PHPMailer, you can start by checking the SMTP settings, ensuring the email address and password are correct, and verifying that the recipient's email address is valid. Additionally, you can enable debugging in PHPMailer to get more detailed error messages and logs to identify the issue. 

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

require 'vendor/autoload.php';

$mail = new PHPMailer(true);

try {
    // Server settings
    $mail->isSMTP();
    $mail->Host = 'smtp.example.com';
    $mail->SMTPAuth = true;
    $mail->Username = 'your-email@example.com';
    $mail->Password = 'your-password';
    $mail->SMTPSecure = 'tls';
    $mail->Port = 587;

    // Recipient
    $mail->setFrom('your-email@example.com', 'Your Name');
    $mail->addAddress('recipient@example.com', 'Recipient Name');

    // Content
    $mail->isHTML(true);
    $mail->Subject = 'Test Email';
    $mail->Body = 'This is a test email';

    $mail->send();
    echo 'Email sent successfully';
} catch (Exception $e) {
    echo 'Message could not be sent. Mailer Error: ' . $mail->ErrorInfo;
}

Keywords

PHP PHPMailer email sending troubleshooting debugging

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