roundcubemail/program/lib/Roundcube/rcube_smtp.php
public function disconnect()
    {
        if (is_object($this->conn)) {
            $this->conn->disconnect();
            $this->conn = null;
        }
    }
public function disconnect()
    {
        if (is_object($this->conn)) {
            $this->conn->disconnect();
            $this->conn = null;
        }
    }
public function disconnect ( ) { if ( is_object ( $ this -> conn ) ) { $ this -> conn -> disconnect ( ) ; $ this -> conn = null ; } }
Disconnect the global SMTP connection
Disconnect the global SMTP connection