This service is used for the urgent and secure delivery of important documents which may require third-party proof (signature on delivery). It is also very convenient, as it is done via the internet.
Due to the extraordinary adaptation measures adopted by Correos from RD 463/2020, Registered faxes will be delivered by collecting the recipient's details without taking their signature.
This service is used for the urgent and secure delivery of important documents which may require delivery to be legally proven to a third party. The recipient's signature is always required on delivery. You can access this service from this page at "Send Online Certified Fax".
From Correos Post Offices to those of other organisations and private users in other countries who have a fax machine.
- Zone A: Europe, Turkey, Algeria, Libya, Morocco and Tunisia.
- Zone B: Other countries. (Ask in the Post Office which countries accept it).
A Registered fax can be sent from this website at "Send Registered fax Online":
The delivery will be:
Guarantees: For delays attributable to Correos, the corresponding price for the Registered fax is reimbursed, not including added values.
Delivery times: Delivery will be the same day (for faxes sent before 13:00 to destinations with Special Delivery Units) or the morning of the next working day (for other cases. Saturdays, Sundays, and public holidays are not included).