What are common issues that may arise when trying to send emails using PHP on a local server versus a remote server?

One common issue when sending emails using PHP on a local server is that the server may not be properly configured to send emails. To solve this, you can use a third-party email service like SMTP to send emails. Another issue is that the email may be marked as spam if sent from a local server, as it lacks proper authentication and verification. To avoid this, set up proper authentication and verification for the email server. 

// Example code using PHPMailer to send emails via SMTP
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@example.com';
    $mail->Password = 'yourpassword';
    $mail->SMTPSecure = 'tls';
    $mail->Port = 587;

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

    //Content
    $mail->isHTML(true);
    $mail->Subject = 'Subject';
    $mail->Body    = 'This is the HTML message body';

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

Keywords

SMTP localhost mail server authentication error handling

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