To facilitate disposition notification in an environment where an apparatus with a signature function and an apparatus without it are mixed.
In the E-mail transmission and reception apparatus, in making a disposition notification request, the disposition notification request is attached to an E-mail to be transmitted (S10 and S12). Whether or not a digital signature is attached to the E-mail is decided by a reception setting. That is, in the the E-mail transmission and reception apparatus, when reception of non-reliable E-mails is rejected, its own digital signature is attached to the E-mail to be transmitted (S16) and it is transmitted (S18); when the reception is not rejected, the digital signature is not attached to the E-mail to be transmitted.
KUSANO NOBUYOSHI
MASUI TAKANORI
TAKADA MAKOTO
JP2001053785A | 2001-02-23 | |||
JP2001298576A | 2001-10-26 | |||
JP2003036231A | 2003-02-07 | |||
JP2001111606A | 2001-04-20 | |||
JPH11331152A | 1999-11-30 | |||
JP2003249919A | 2003-09-05 |
WO2005004422A1 | 2005-01-13 |
Jun Ishida