On Friday 02 Apr 2004 3:36 pm, Jon R. Kibler wrote:
>A US patent granted to Postini... effectively says that any system
>which intercepts mail, filtering viruses and spam messages from the
>inbox and then sends what's left to the intended recipient is using
>Postini's intellectual property (IP)...

I think its not that clear cut: according to the article: 
"Postini's patent describes using a modified DNS address to redirect email to 
an email pre-processing service". Now correct me if I'm wrong, but I don't 
think mimedefang does anything involving modifying DNS: it just sits on a 
legitimate MX record and filters stuff going through. In patent terms I think 
this makes it a completely different product.

cheers
john
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