PHPMailer\PHPMailer

PHPMailer::clearCustomHeaders() │ public │ WP 1.0

Clear all custom headers.

{} It's a method of the class: PHPMailer{}

No Hooks.

Return

null. Nothing.

Usage

$PHPMailer = new PHPMailer();
$PHPMailer->clearCustomHeaders();

Code of PHPMailer::clearCustomHeaders() WP 6.0

wp-includes/PHPMailer/PHPMailer.php 
public function clearCustomHeaders()
{
    $this->CustomHeader = [];
}