How can PHP Mailer classes like PHPMailer or SWIFTMailer help in resolving email sending issues?

When sending emails using PHP's built-in mail() function, there can be various issues such as emails being marked as spam or not being delivered at all. PHP Mailer classes like PHPMailer or SWIFTMailer provide more advanced features and configurations to help resolve these issues. They offer better control over email headers, SMTP authentication, and handling attachments, ultimately increasing the chances of successful email delivery. 

// Using PHPMailer to send an email with proper configurations
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;

// Include PHPMailer autoload file
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 = 'Email body content';

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

Keywords

PHP Mailer PHPMailer SWIFTMailer email sending resolving issues

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