On 07/11/2006 15:15, Chris Lightfoot wrote: > how do you allow the recipient to discover when mail they > wanted has been blocked?
That usually comes to light when the original sender files a complaint. Right now, in my day job, if we notified every recipient that a message to them had been blocked we'd end up with an increase of 4 times the amount of mail in people's inboxes (on average, many would be less but some would be far greater). One one system I run (for a very small user base) I educate people to put the spams that get through in a specific, shared, folder so that we can all learn from them (including the system). Between us we then assume that everything in their inbox is not spam. As far as I know, in three years of running this, we have only ever had a single set of FPs and they came, repeatedly, from Yahoo! e-group digest messages which seem to have _dreadfully_ bad HTML formatting. Aside from that, none. As the system I'm on about is only used by my wife and I, we'd get told fairly quickly if a message was rejected when it shouldn't be. Or maybe that's the point of this - maybe, in actual fact, we'd get no such thing. Interesting - from that I can deduce, albeit not very scientifically, that measurement of false positives is impossible without efficient and consistent third-party reporting. Or, maybe, I can just process the logs (considering I know who emails me, most of the time). Graeme -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/