Systems and methods for authenticating an electronic message

A computer-implemented method for authenticating an electronic message, comprising:

• receiving, by an authentication server at a predetermined time, a request to authenticate the electronic message and a hash value derived from the electronic message;
• generating an electronic postmark data structure, the electronic postmark data structure comprising at least one of:
• the hash value;
• time and date information;
• branding data from a system registry;
• and
• a digital signature generated for the electronic postmark data structure;
• storing a copy of the the electronic postmark data structure in a log file;
• and
• sending the electronic postmark data structure to a recipient client.

A system for authenticating an electronic message, comprising:

• a receiver that receives, at a predetermined time, a request to authenticate the electronic message and a hash value;
• a temporal component that obtains time and date information;
• a branding component that receives branding data from a system registry;
• a signature component that generates a digital signature;
• a generating component that generates an electronic postmark data structure comprising at least one of:
• the hash value;
• time and date information;
• branding data from a system registry;
• and
• a digital signature generated for the electronic postmark data structure;
• a database that stores a copy of the electronic postmark data structure in a log file;
• and
• a sender that sends the electronic postmark data structure to a recipient client.