Method for blocking Spam

• US 20050198518A1
• Filed: 01/20/2004
• Published: 09/08/2005
• Est. Priority Date: 01/20/2004
• Status: Abandoned Application

• Current Assignee: Aladdin Knowledge Systems Limited (Thales SA)
• Original Assignee: Aladdin Knowledge Systems Limited (Thales SA)
• Inventors: Gruper, Shimon, Kogan, Leonid, Margalit, Dani, Margalit, Yanki
• Application Number:
  US10/759,017
• Publication Number:
  US 20050198518A1
• Time in Patent Office: Days
• US Class Current: 713/188
• CPC Class Codes: H04L 51/212 using filtering or selective blocking
• CPC Class Codes: H04L 51/48 Message addressing, e.g. address format or anonymous messages, aliases
• CPC Class Codes: H04L 63/1441 Countermeasures against malicious traffic countermeasures against attacks on cryptographic mechanisms H04L9/002

Abstract

A method for blocking Spam sent to an email address of an individual, comprising: establishing an intermediating email address, for corresponding with a party of interest without revealing the permanent email address of the individual; indicating an email message sent to the intermediating email address as Spam unless the sender thereof is the party of interest. On indicating an email message as Spam, blocking the email message. On indicating an email message as non-Spam, redirecting the email message to the permanent email address of the individual. In one embodiment of the invention, the intermediating email address expires after a predefined or arbitrary period. The method may be implemented by an email client associated with the intermediating email address, an email server, a proxy server, a gateway server and so forth.

Claims

1. A method for blocking Spam sent to a first email address, said method comprising the steps of:

creating a second email address, for corresponding with at least one second party while concealing said first email address, said second email address and said first email address having a common denominator;

indicating an email message sent to said second email address as Spam if an identity of the sender thereof is not said at least one second party;

on indicating said email message as Spam, blocking said email message; and

on indicating said email message as non-Spam, redirecting said email message to said first email address.

2. A method according to claim 1, wherein said identity of the sender thereof is indicated as said second party by a member of the group comprising:

an email address of said email message, a domain of said email address, certain text within the content of said email message, certain text within a field of said email message.

3. A method according to claim 1, wherein said first email address and said second email address are administered by different email accounts.

4. A method according to claim 1, further comprising the step of:

expiring said second email address after a time period selected from the group consisting of;

predefined time period, arbitrary time period.

5. A method according to claim 1, wherein said indicating an email message sent to said second email address as Spam is carried out at a point selected from the group comprising:

an email client associated with said second email address, an email server, a proxy server and a gateway server.

6. A method according to claim 1, wherein said blocking of said email message is carried out at a point selected from the group comprising:

an email client associated with said second email address, an email server, a proxy server and a gateway server.

7. A method according to claim 1, wherein said second email address is rendered transparent to said second party.

8. A method according to claim 1, wherein said blocking is effected by a method selected from the group comprising:

deleting said email message, placing said email message in a separate folder and allowing the user to review, delete or ignore the message and further to remove the Spam from said folder.

9. A method according to claim 1, wherein said common denominator is selected from the group comprising:

the same owner, the same user name, the same email account.