> -----Original Message----- > From: Michael Scheidell [mailto:scheid...@secnap.net] > Sent: Friday, February 20, 2009 9:24 PM > > wonder why this is patentable? sounds like preque filtering available > in > every mta since the early 90's... > looks for 'helo/mailfrom/recpt to' then drops or accepts connection.
Why are software ideas patentable, anyway? It is only to steal $$$ and to stop newcomers, which is the exact opposite of the original meaning of patenting... Have a read to http://www.nosoftwarepatents.com/ . It is an EU-based organization, but motivations are the same regardless of nationality. Here in EU we have a lot of (zealous?) public officers attempting to introduce software patens in any possible way. Giampaolo > > http://www.freepatentsonline.com/7490128.html > > United States Patent 7490128 > > Abstract: > The spam blocker monitors the SMTP/TCP/IP conversation between a > sending > message transfer agent MTA-0 and a receiving message transfer agent > MTA-1; catches MTA-0's IP address IP-0, MTA-0's declared domain D-0, > sender_address A-0; and recipient A-1; and uses this source and content > based information to test for unsolicited messages. It interrupts the > conversation when MTA-0 sends a command specifying the recipient (an > "RCPT" command) and uses the various test results to decide if the > message is suspected of being unsolicited. If the message is suspected > of being unsolicited then it logs the rejected message, sends an error > reply to MTA-0 which forces MTA-0 to terminate the connection with MTA- > 1 > before the body of the message is transmitted; else it logs the allowed > message, releases the intercepted RCPT command which allows the > conversation between MTA-0 and MTA-1 to proceed. > > -- > Michael Scheidell, CTO > Phone: 561-999-5000, x 1259 > > *| *SECNAP Network Security Corporation > > * Certified SNORT Integrator > * King of Spam Filters, SC Magazine 2008 > * Information Security Award 2008, Info Security Products Guide > * CRN Magazine Top 40 Emerging Security Vendors > * Finalist 2009 Network Products Guide Hot Companies > > _______________________________________________________________________ > __ > This email has been scanned and certified safe by SpammerTrap(r). > For Information please see http://www.secnap.com/products/spammertrap/ > _______________________________________________________________________ > __
