Message Subject is wrong for Greek emails (UTF8)

[GeoSot]

Email subject was parsed like:
=?windows-1253?Q?Re:_(Ticket:BJBZF-W0NRO)(4JIV09081),_Order_placed_by?= =?windows-1253?B?INDBzcHDydnUx9MgysHU08nKz8PJwc3Nx9MsIHRvdGFsIDEyNyw1MCCA?=

[GeoSot]

I had also problem with the attachments name so, I have also to changed the Attachment.php line 229 from

    /**
     * @param $name
     */
    public function setName($name) {
        $this->name = mb_decode_mimeheader($name);
    }

to

    public function setName($name) {
        $this->name = imap_utf8($name);
    }

and worked like a charm