Yes you need to authenticate it in the Philippines DFA and Qatar Embassy in the Philippines. After authentication at the DFA go to any DHL courier and they will take good care of the authentication in Qatar Embassy and it will be delivered to your home address. Your relatives can send it to you here in Doha . It's the procedure now since there were fake MC issued before here in Doha. They just want your papers to be attested by the Manila government and Qatar Embassy that's all.