[Mimedefang] MD and all of its users appear to be in violationof a US Patent

[Ole Craig]

On 04/02/04 at 10:13, 'twas brillig and Jon R. Kibler scrobe:
> Joseph Brennan wrote:
> <SNIP!>
> > > (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;
> > 
> > So it appears to be limited to an idea involving DNS.  The other claims
> > all relate to claim 1.
> > 
> <SNIP!>
> Look at it from Postini's lawyers viewpoint: If your DNS' MX record points to
> a mail server that does spam/virus filtering, and that mail server is NOT the
> mail server that ultimately saves the message to /var/spool/mail/whoever (or
> equivalent mail store), then you are in violation of their patent because you
> have used DNS to specify a filtering system that then delivers its filtered
> mail to the ultimate target using the target system's DNS MX record. 

	The last clause of that sentence is in conflict with the
first: if the mail got diverted to your filterbox via an MX, then the
filterbox can't use that MX to finish delivery (because the MX record
points to the filter, not the target system.)

		Ole
-- 
Ole Craig * UNIX, linux, SMTP-ninja; news, web; SGI martyr * CS Computing
Facility, UMass * <www.cs.umass.edu/~olc/pgppubkey.txt> for public key

  Where are the missing deficit-reduction program-related activities?