> http://www.opendkim.org/stats/report.html
> Most frequent header field changes resulting in signature failures:
> to 2989
> subject 233
> cc 178
> from 134
> date 131
> reply-to 84
> message-id 45
This table pretty much proves my claim (expressed on
various occasions) that signing the "To" is asking
for trouble (and brings no benefit).
> Signed header field frequency (top 20 shown):
> from 2440351
> subject 2335598
> date 2329541
> to 2327365
> mime-version 2256624
> content-type 2072952
> message-id 1836235
> reply-to 1071669
> received 978484
> list-unsubscribe 763708
> content-transfer-encoding 518180
> sender 409641
This illustrates my other claim: signing the Received
header field is common and mostly harmless, despite
the dkim rfc trying to shy us away from doing so.
Mark
Received on Fri Feb 18 2011 - 01:01:11 PST