PHPMailer\PHPMailer

SMTP::turn() │ public │ WP 1.0

Send an SMTP TURN command. This is an optional command for SMTP that this class does not support. This method is here to make the RFC821 Definition complete for this class and _may_ be implemented in future. Implements from RFC 821: TURN <CRLF>.

Method of the class: SMTP{}

No Hooks.

Return

true|false.

Usage

$SMTP = new SMTP();
$SMTP->turn();

SMTP::turn() code WP 6.5.2

wp-includes/PHPMailer/SMTP.php 
public function turn()
{
    $this->setError('The SMTP TURN command is not implemented');
    $this->edebug('SMTP NOTICE: ' . $this->error['error'], self::DEBUG_CLIENT);

    return false;
}