On 15/02/2021 01:30, John R. Levine wrote:
On Sun, 14 Feb 2021, Dave Crocker wrote:
I think that calling Delivered-To: a 'trace' header field ties it to
this model in ways that aren't appropriate. And it isn't the above
model that should change.
I took a look at 5322, in which section 3.6.6 says that Resent fields
are not trace headers, even though they are added in exactly the same
way that trace fields are. Presumably there was a historical reason
for that.
I see that 8601 says that A-R says that it is a trace field so I don't
see why Delivered-To is not also a trace field. It's just as trace-y.
I agree.
FYI, Delivered-To is not always added by an MDA. Sometimes, as in the
example I sent a few messages back, it's added by the MTA when it
rewrites an address internally.
Best Regards,
Alexey
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