Bug#500966: why?

2008-10-05 Thread Stephen Gran
This one time, at band camp, Marco d'Itri said: On Oct 04, Stephen Gran [EMAIL PROTECTED] wrote: Does signing a mail tell me something about the origin that the IP layer doesn't already tell me much more cheaply? You are missing the point: maintaining reputation data associated to IP

Bug#500966: why?

2008-10-05 Thread Marco d'Itri
On Oct 05, Stephen Gran [EMAIL PROTECTED] wrote: You are missing the point: maintaining reputation data associated to IP addresses is not cheap at all nor very reliable, because IP addresses tend to change and mail to be forwarded. DK/DKIM (and partially SPF) solve these problems by

Bug#500966: why?

2008-10-05 Thread Stephen Gran
This one time, at band camp, Marco d'Itri said: This is why your experience is not relevant. It's so cute when you think you're important. But really, a bug report isn't all that useful a place to debate the merits of this. Why don't you head over to SPAM-L or mailop and let them know how

Bug#500966: why?

2008-10-04 Thread Marco d'Itri
On Oct 04, Stephen Gran [EMAIL PROTECTED] wrote: Does signing a mail tell me something about the origin that the IP layer doesn't already tell me much more cheaply? You are missing the point: maintaining reputation data associated to IP addresses is not cheap at all nor very reliable, because

Bug#500966: why?

2008-10-03 Thread Stephen Gran
Does signing a mail tell me something about the origin that the IP layer doesn't already tell me much more cheaply? Granted, not every subscriber runs their own mail server, but enough do that it's trivial to verify that a given mail with a given hash sum came from the list servers. I'm