PHPMailer\PHPMailer

SMTP::setVerp() │ public │ WP 1.0

Enable or disable VERP address generation.

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

No Hooks.

Return

null. Nothing.

Usage

$SMTP = new SMTP();
$SMTP->setVerp( $enabled );
$enabled(true|false)
-
Default: false

Code of SMTP::setVerp() WP 6.0

wp-includes/PHPMailer/SMTP.php 
public function setVerp($enabled = false)
{
    $this->do_verp = $enabled;
}