How can one ensure successful communication with mail servers when using PHP for sending emails?

To ensure successful communication with mail servers when using PHP for sending emails, it is important to properly configure the SMTP settings in your PHP script. This includes specifying the correct SMTP server address, port number, authentication method, username, and password. Additionally, make sure that your server allows outgoing SMTP connections and that your email content follows the necessary formatting rules. 

// Set SMTP settings
$smtpServer = 'mail.example.com';
$smtpPort = 587;
$smtpUsername = 'your_smtp_username';
$smtpPassword = 'your_smtp_password';

// Create a new PHPMailer instance
$mail = new PHPMailer;

// Set PHPMailer to use SMTP
$mail->isSMTP();

// Enable SMTP debugging
$mail->SMTPDebug = 0;

// Set SMTP server address, port, username, and password
$mail->Host = $smtpServer;
$mail->Port = $smtpPort;
$mail->SMTPAuth = true;
$mail->Username = $smtpUsername;
$mail->Password = $smtpPassword;

// Set email content and send email
$mail->setFrom('your_email@example.com', 'Your Name');
$mail->addAddress('recipient@example.com', 'Recipient Name');
$mail->Subject = 'Subject of the email';
$mail->Body = 'Body of the email';
$mail->isHTML(true);

if (!$mail->send()) {
    echo 'Message could not be sent.';
    echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
    echo 'Message has been sent';
}

Keywords

SMTP PHPMailer authentication error handling email delivery

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