Hi!
On 12/12/25 23:59, John Levine wrote:
It appears that Hannah Stern <[email protected]> said:
Why can, in your example, the changes mv=3 to mv=5 not be coalesced?
That ought to be not so difficult algorithmically.
That's a deliberate choice. The places that change messages and the
ones that sign messages are often not the same, and this lets each
apply a header describing what it did. An example would be a mailing
list that adds a subject tag to a message and adds a M-V header saying
what it did, then hands the modified message to an MTA that signs it
and sends it out.
Yes I understand. I was just interested in the motivation and you
explained it here. Thanks.
While this makes the verifier a little more complicated, so what?
Nearly everyone uses one of a handful of libraries to check the
current DKIM signatures, and that will likely also be true for DKIM2.
The people who write the libraries can deal with it, and mail system
operators use the results returned by the libraries.
Now I'll probably be in the place of an implementer, but as you say,
this can be dealt with with not so much more complexity than the
previous proposals.
R's,
John
Kind regrads,
Hannnah.
--
Hannah Stern
Software Developer
Mail Transfer Development
1&1 Mail & Media Development & Technology GmbH | | |
Phone: +49 721 91374-4519
E-Mail: [email protected] | Web: www.mail-and-media.com www.gmx.net
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Dr. Verena Patzelt
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