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You can use PHPMailer to add a reply-to address in the following way:

1. Include the PHPMailer library in your project:

require 'path/to/PHPMailer/src/PHPMailer.php';

2. Create a new instance of the PHPMailer class:

$mail = new PHPMailer;

3. Set the addReplyTo method to add the reply-to address:

$mail->addReplyTo('[email protected]', 'Reply Name');

4. Send the email as usual:

$mail->send();

The addReplyTo method takes two parameters: an email address and the name of the recipient.

You can find more information about PHPMailer and its addReplyTo method in the official documentation.

onelinerhub: How do I use PHPMailer to add a reply-to address?