At 11:09 AM -0400 3/15/09, Chris Franklin wrote: >The rfcs do not talk about proxies, only gateways. And they are too >different things. That can and usually do coexist with in the same >box/hardware.
I think you are missing what a proxy is. A gateway is a proxy; a relay is a proxy; a proxy server sits between a client application, and a real server. A proxy intercepts all requests to the real server to see if it can fulfill or filter the requests itself. If not, it forwards the request to the real server. The definition which I like because it is most clear is, "In computer networks, a proxy server is a server (a computer system or an application program) that acts as a go-between for requests from clients seeking resources from other servers" See http://en.wikipedia.org/wiki/Proxy_server , http://www.answers.com/topic/proxy-server and http://whatis.techtarget.com/definition/0,,sid9_gci212840,00.html Clearly ASSP is not a Transparent proxy in the strict meaning of the term and maintaining just the sender's "helo" while filtering tagging, etc. just seems incorrect. So given the above definitions a proxy meets the criteria of a relay in RFC 2821 and its action should follow D.3. But most important, and here is a valid argument for "transparency", is that in a MUA, the email sitting in the inbox is would not appear compliant with RFC 2821 and its apparent chain of custody would appear spoofed using a helo/ehlo salutation that does not match the IP of the ASSP. In response to JR's worry about multiple hosts within a domain and the MTU's responses, I really don't see the issue, but that is for another email if asked. Bottom line, shouldn't the mail headers on the email sitting in your inbox reflect the chain of custody described in RFC 2821? Nevertheless, I bow to the desires of the community, I just wanted to explain my position clearly. Tom ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Assp-test mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/assp-test
