Method to certify an email comprising a reliable digital signature by a telecommunications operator

摘要

Digitally signed e-mail certification method, which is carried out through a telecommunications operator, comprising the method: i. generation by a transmitter (1,2,3), which is a user of the telecommunications operator, of at least one email, ii. make the e-mail reach a client mail server of the telecommunications operator (4,15), iii. send the email to: - a mail destination server (7, 24) via the internet (5) to get it to a certified mail destination (8,25), and - an incoming mail server of the telecommunications operator (9), and sending the email from the incoming mail server of the telecommunications operator (9) to a certification data processing server that is a part of the telecommunications operator, iv. certify (17), by the certification data processing server, the email in which said certification in turn comprises generating a copy (18) of the email and breaking the email into its parts in which said parts comprise transmission details, reception details and mail content, the digitally signed email certification method further comprises: v. encapsulate (20), by the certification data processing server, the copy (18) of the email in a container, vi. generate a certified mail (21), by the certification data processing server, comprising the encapsulated copy (18) of the email and make it arrive at the outgoing mail server of a telecommunications operator (23, 26) from the certification data processing server, vii. make the certified mail (21) reach the destination mail server (7, 24) from the outgoing mail server of the telecommunications operator (23,26,38,50), viii. make the certified mail (21) arrive from the mail destination server (7, 24) to: - the registered mail destination (8,25), and - the outgoing mail server of the telecommunications operator (23, 26,38,50), ix. delivering the outgoing mail server of the telecommunications operator (23,26,38,50) the encapsulated copy (18) of the email, for delivery, waiting a later time of between 10 minutes and an hour for a rejection response later to prevent the mail destination server from accepting everything in the first instance and later rejecting, x. carry out a delivery check (27) of the certified mail (21) at the registered mail destination (8,25), xi. If the certified mail could be delivered, generate a certificate (37,49) through a certification server (30,41) of the telecommunications operator in which said certificate includes: a. a first part (31,42) which in turn includes: transmission details, reception details and mail content, and b. a second part (34,45) which in turn includes details of the arrival of the certificate (21) at the outgoing mail server of the telecommunications operator (23,26), in which a subsequent verification (44) is carried out to the generation of the first part (31,42), said verification (44) comprising checking if the destination server of the certified email (8,25) is in a list of bounce servers / blacklists that by default they accept all messages and subsequently reject them when the recipient of the corresponding certified mail (8,25) does not exist; in such a way that the method additionally comprises: - adding to the certificate (37,49) details that refer to the non-existence of the recipient in the destination server of certified mail (8,25), when the verification (44) gives as result that the certified mail destination server (8,25) is on the list of bounce servers / blacklists, or - compose the second part (34,45) of the certificate (37,49) with all transactional details, add a timestamp (35,48) of a third party and sign the certificate (37,49) with the electronic signature of the telecommunications operator, when the mail destination server (7, 24) is not blacklisted or bounce list, and xii. make the certificate (37,49) reach the transmitter (1,2,3).