On Tue, 28 Apr 2009 11:13:56 -0600 LuKreme <krem...@kreme.com> wrote:
> On 28-Apr-2009, at 08:56, Matus UHLAR - fantomas wrote: > > We have more servers users send mail through. Users can't choose > > which server will they connect. > > That already happens now. I think his point is that that doesn't currently cause a problem, but would with your scheme. > The AWL has a confidence based on number of > messages received, right? If I get messages from b...@example.com that > come from a variety of servers, the confidence is much lower than if > they all come from the same server, so the adjustment is lower. I'm not aware that it has any such concept, AFAIK the AWL score is a configurable fraction of average-score - current-score. > No, if they get spam from the SAME senders on DIFFERENT servers, the > AWL would go up even faster. It's based on the first routable IP address, not the last-hop into the trusted network, so someone using other people's wireless networks could go through a huge number of addresses even with the same outgoing smtp-server. Note also that the email address and ip address used by AWL are both forgable by spammers.