Postal Registered Electronic Mail (PREM) consists in the acceptance, by Macao Post and Telecommunications Bureau (hereinafter CTT), of electronic messages sent through electronic means by an authenticated sender, in order to be delivered, also through electronic means, to one or more authenticated addressees, indicated by the sender. PREM uses secure electronic means, and the proofs of sending and delivery are certified by CTT.

In accordance with PREM Public Service Regulations, approved by the Dispatch of the Chief Executive n.º 186/2013, PREM is equivalent to registered mail with delivery advice. PREM attests:

• 1) The authenticity of the sender, addressee and designated operators of origin and destination;
• 2) The sending, forwarding, delivery, non delivery, rejection and expiry of the electronic message, and its dates and time;
• 3) The confidentiality of the electronic message;
• 4) The integrity of the electronic message.

This service was created in accordance with Article RL 264 of Letter Post Regulations of Universal Postal Union, and Postal Registered Electronic Mail Functional Specifications (S52), also of Universal Postal Union, and uses internationally recognized cryptographic technologies to generate non-repudiable evidences and assure the confidentiality and integrity of electronic messages.

For further information about this service, please visit our website:http://seps.ctt.gov.mo, or contact us through our phone-line: (853) 28720029, or the e-mail: support@seps.ctt.gov.mo 。