TRUSTED COMMUNICATION BY E-MAIL IN MULTIUSER ENVIRONMENT Russian patent published in 2015 - IPC H04L12/58 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to devices providing the trusted communication by e-mail. Messages are received from an organisation - source of the message for the organisation - recipient. The organisation - source of the message is identified. Verification is performed, whether the organisation source of the message is trusted. Verification is performed, whether the organisation - recipient supports extension of attribution data, also verification is performed, whether the organisation - recipient declares support of extension of attribution data in response to EHLO command transmitted through the simple message transmission protocol (SMTP). In response to verification, whether the organisation - recipient supports extension of attribution data, the message is transmitted to the organisation - recipient with the attribution element specifying that the message is created by the trusted organisation - source of the message.

EFFECT: improvement of reliability of received messages.

20 cl, 4 dwg