How to add a BCC to PHP mail() command.

To add BCC (Blind Carbon Copy) recipients when sending mail in PHP, you can modify the headers to include BCC recipients. Here’s how you can do it:

Example using PHP mail() function:

<?php
// Email recipient
$to = "recipient@example.com";

// Subject of the email
$subject = "Test Email with BCC";

// Message body
$message = "This is a test email with BCC using PHP mail() function.";

// Headers
$headers = "From: sender@example.com\r\n";
$headers .= "Reply-To: sender@example.com\r\n";
$headers .= "Bcc: hidden1@example.com, hidden2@example.com\r\n"; // Add BCC recipients
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: text/plain; charset=UTF-8\r\n";

// Send the email
if (mail($to, $subject, $message, $headers)) {
    echo "Email sent successfully!";
} else {
    echo "Failed to send email.";
}
?>

Explanation:

• $headers: The $headers variable is where you define your email headers. In this case, you first add the From: header and then append the BCC: header.
• BCC:: You can include multiple email addresses separated by commas.
• \r\n: Ensures proper line breaks in email headers.

This will send the email to the primary recipient and also BCC it to hidden1@example.com and hidden2@example.com.

Considerations:

• The mail() function relies on the server’s mail configuration (sendmail, Postfix, etc.). If it’s not working, consider using a third-party SMTP library like PHPMailer.
• Some mail servers may block emails with BCC to prevent spam.
• Would you like an example using PHPMailer (which is more reliable for sending emails)?