System and method for facilitating access of postal services of an account by another account

A method for facilitating access of postal services of an account by another account, the method being implemented on a computer system that includes one or more physical processors executing one or more computer program instructions which, when executed, perform the method, the method comprising:

• receiving, by the one or more physical processors, a request to authorize access for a first account of a postal carrier to one or more postal services of a second account of a postal carrier;
• responsive to authorization from the second account, combining, by the one or more physical processors, a first identifier associated with the first account and a second identifier associated with the second account to generate a message such that the message comprises the first identifier and the second identifier;
• responsive to the message being provided to a cryptographic platform, receiving, by the one or more physical processors, an integrity code associated with the first account and the second account from the cryptographic platform, the integrity code being configured to enable the access to the one or more postal services of the second account for the first account;
• storing, by the one or more physical processors, the integrity code in association with the first account;
• receiving, by the one or more physical processors, a request initiated via the first account to execute a postal transaction associated with the one or more postal services of the second account;
• responsive to the first-account-initiated request, using, by the one or more physical processors, the first identifier and/or the second identifier to retrieve the integrity code stored in association with the first account;
• using, by the one or more physical processors, the retrieved integrity code to validate the first-account-initiated request;
• and
• responsive to the validation indicating that the first-account-initiated request is valid, initiating, by the one or more physical processors, execution of the postal transaction associated with the one or more postal services of the second account.