On Tue, Jun 4, 2013 at 6:48 AM, Dave Crocker <d...@dcrocker.net> wrote:
> > Simply publishing this draft appears to have already increase >>>> the level of multiple FROM header field abuse seen where it is >>>> now at 21% of signed DKIM messages. >>>> >>> >>> Sounds pretty scary. No doubt the assertion is publicly >>> verifiable, including the basis for asserting that it is causing >>> problem? >>> >> >> Sure. Simply observe the increasing signed DKIM messages that have >> multiple From:'s. >> > > The challenge I placed was on documenting the claim. The point is to > permit community assessment of the claim. As another data point, when Doug's claim of increased appearance of multi-From messages surfaced, I instrumented my own MTAs to detect the same sort of thing to see if he's right. My data don't concur with the claim; it's still nearly zero. I will release the source code for this in an update to OpenDKIM soon, so others can collect their own data. -MSK
