Doesn't look like it applies to SA, but interesting nonetheless. http://www.theregister.co.uk/content/55/36666.html http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=6,650,890.WKU.&OS=PN/6,650,890&RS=PN/6,650,890
The start of the patent: 1. A method of providing electronic messaging services in an email network comprising a sending email server and a destination email server, wherein emails may be delivered from the sending email server to the destination email server via an electronic message delivery path through existing Internet infrastructure, the method comprising: (a) inserting an intermediate pre-processing service into the electronic message delivery path by changing a Domain Name Server entry containing an IP address of the destination email server to contain an IP address of the intermediate pre-processing service; (b) receiving in the intermediate pre-processing service email message data addressed to the destination email server that has been routed through the intermediate pre-processing service; and (c) simultaneously with receiving the email message data in the intermediate pre-processing service, processing the e-mail message data and, if the processing of the email message data instructs delivery to the destination email server, delivering the email message data to that server. So 1(c) doesn't apply to SA, unless the sysadmin configures the server to quarentine spam rather than simply adding markup, and 1(a) doesn't apply if SA is integrated into the destination server, rather than an intermediate mail server. -- Give a man a match, and he'll be warm for a minute, but set him on fire, and he'll be warm for the rest of his life. Advanced SPAM filtering software: http://spamassassin.org
