[ietf-dkim] Draft minutes...

[Eric Allman]

Resent-* should only be added by MUAs when someone is re-submitting a 
message back into the MHS.  Essentially Resent-From subsumes the role 
of From when a message is re-submitted (ditto for Resent-Sender and 
Sender).  It's not quite this simple, since an MUA replying to a 
resent message should still reply back to the original originator, 
not the resending originator, but that's the basic gist of it.

eric


--On July 12, 2006 4:44:57 PM -0700 Michael Thomas <mike at mtcc.com> 
wrote:

> Eric Allman wrote:
>
>> For the same reason From: has to be signed --- they represent the
>> [fill in blank with your favorite word: author, originator,
>> whatever]  of the message.  I suppose we can legitimately ask why
>> From: MUST be  signed though.  In terms of interoperability it is
>> not required, but  in terms of being useful it seems like it is.
>
>
>    I'm unclear on Resent-From and Resent-Sender: can they be added
> in transit?
>    If so, the MUST as worded below will guarantee the signature
> won't be valid
>    after somebody adds those headers.
>
>    I guess if you're going to make these MUST requirements why
> Sender or
>    ListID aren't MUST's too. Frankly I think the wording with From,
> Subject
>    and Date is fine and leave the rest to the disgression of the
> signer.