Patent ID: 8255685

Claim:
A method, for being performed by a mail server having a receiver, a processor and a transmitter, of validating a certificate issuance notification message, said method comprising: receiving, at said receiver, a message; determining, at said processor, that said message comprises a certificate issuance notification message; extracting a plurality of uniform resource locators from said certificate issuance notification message; determining that a quantity of said plurality of said extracted uniform resource locators is less than a maximum expected count of uniform resource locators, thereby verifying, at said processor, that said certificate issuance notification message conforms to expected norms specific to certificate issuance notification messages; and responsive to said verifying, transmitting, at said transmitter, a selected uniform resource locator, from among said plurality of uniform resource locators extracted from said certificate issuance notification message, to a network entity configured for processing certificate issuance.