Electronic mail delivery refusal method, electronic mail delivery refusal device and storage medium recording a program enabling a computer to execute the method

• US 20030182381A1
• Filed: 10/07/2002
• Published: 09/25/2003
• Est. Priority Date: 03/22/2002
• Status: Abandoned Application

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Motoe, Ikuma
• Application Number:
  US10/265,331
• Publication Number:
  US 20030182381A1
• Time in Patent Office: Days
• US Class Current: 709/206
• CPC Class Codes: H04L 51/212 using filtering or selective blocking
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 61/4552 Lookup mechanisms between a plurality of directories; Synchronisation of directories, e.g. metadirectories
• CPC Class Codes: H04L 61/4555 Directories for electronic mail or instant messaging

Abstract

A provider device comprises a delivery refusal server. The delivery refusal server further comprises a computer identification information extracting unit and a delivery refusal judging unit. The computer identification information extracting unit extracts computer identification information identifying a computer in a network from the text of an electronic mail addressed to a user. The delivery refusal judging unit judges whether the electronic mail should be delivered, based on the extracted computer identification information. Thus, the delivery of electronic mail that the user does not want, can be effectively refused.

Claims

1. An electronic mail delivery refusal judging method for judging whether an electronic mail should be delivered, comprising:

extracting a first computer identification information identifying a computer in a network from the text of a first electronic mail; and

judging whether the first electronic mail should be delivered, based on the extracted first computer identification information.

2. The electronic mail delivery refusal judging method according to claim 1, further comprising:

extracting a second computer identification information from the text of a second electronic mail; and

judging whether the first electronic mail should be delivered, based on the first and second computer identification information.

3. The electronic mail delivery refusal judging method according to claim 2, wherein

if the first and second computer identification information at least partially coincide, it is judged that the first electronic mail should not be delivered.

4. The electronic mail delivery refusal judging method according to claim 2, further comprising:

obtaining a first registration information about a computer in a network, based on the first computer identification information;

obtaining a second registration information about a computer in a network, based on the second computer identification information; and

judging whether the first electronic mail should be delivered, based on the first and second registration information.

5. The electronic mail delivery refusal judging method according to claim 4, wherein

the first and second registration information can be obtained using a Whois protocol.

6. The electronic mail delivery refusal judging method according to claim 4, wherein

if the first and second registration information at least partially coincide, it is judged that the first electronic mail should not be delivered.

7. The electronic mail delivery refusal judging method according to claim 1 or 6, wherein

said computer identification is a domain or an Internet protocol address.

8. A computer-readable storage medium on which is recorded a program enabling a computer to execute a process, said process comprising:

extracting a first computer identification information identifying a computer in a network from text of a first electronic mail; and

judging whether the first electronic mail should be delivered, based on the extracted first computer identification information.

9. An electronic mail delivery refusal judging device, comprising:

a computer identification information extracting unit extracting a first computer identification information identifying a computer in a network from text of a first electronic mail; and

a delivery refusal judging unit judging whether the first electronic mail should be delivered, based on the extracted first computer identification information.

10. An electronic mail delivery refusal judging device, comprising:

computer identification information extracting means for extracting a first computer identification information identifying a computer in a network from text of a first electronic mail; and

delivery refusal judging means for judging whether the first electronic mail should be delivered, based on the extracted first computer identification information.

11. An electronic mail receiving method, wherein

a first computer sends the text of a first electronic mail to a second computer, and

the first computer receives a second electronic mail that a second computer judges to be delivered based on computer identification information identifying a computer in a network, that is extracted from text of the first electronic mail.