The origin address of an e-mail message is validated to enable blocking of
e-mail from spam e-mail sources, by preparing, in response to the receipt
of a predetermined e-mail message from an unverified source address, a
data key encoding information reflective of the predetermined e-mail
message. This message, including the data key, is then issued to the
unverified source address. The computer system then operates to detect
whether a response e-mail message, responsive to the challenge e-mail
message, is received and whether the response e-mail message includes a
response key encoding predetermined information reflective of a
predetermined aspect of the challenge e-mail message. The unverified
source address may be recorded in a verified source address list. Thus,
when an e-mail message is received, the computer may operate to accept
receipt of a predetermined e-mail message on condition that the source
address of the predetermined e-mail message is recorded in the verified
source address list and alternatively on condition that the predetermined
e-mail message includes the response key.
_ origen tratar uno E-mail mensaje ser validar permitir blocking E-mail Spam E-mail fuente, por preparing, en respuesta recibo uno predeterminar E-mail mensaje uno unverified fuente tratar, uno dato llave encoding información reflexivo predeterminar E-mail mensaje. _ este mensaje, incluyendo dato llave, ser entonces publicar unverified fuente tratar. _ computadora sistema entonces funcionar detectar si uno respuesta E-mail mensaje, responsivo desafiar E-mail mensaje, ser received y si respuesta E-mail mensaje incluir uno respuesta llave encoding predeterminar información reflexivo uno predeterminar aspecto desafiar E-mail mensaje. _ unverified fuente tratar poder ser registrar en uno verificar fuente tratar lista. _ así, cuando uno E-mail mensaje ser received, computadora poder funcionar aceptar recibo uno predeterminar E-mail mensaje a condición de que fuente tratar predeterminar E-mail mensaje ser registrar en verificar fuente tratar lista y alternativo a condición de que predeterminar E-mail mensaje incluir respuesta llave. _
