Blocking of spam e-mail at a firewall
US7617526B2 · kind B2 · utility
4Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2005 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Nov 23, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of blocking spam at a firewall involves applying blocking measures for an adaptively determined duration. The blocking measure is then suspended while determining whether the spam has ended. If so, the method resets to an initial state. Otherwise, the blocking measure is re-applied for a second duration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.