Re: homework, not an experiment, draft-crocker-email-deliveredto

"John Levine" <[email protected]> 7 Aug 2021 15:35:31 -0400
Newsgroups gmane.ietf.smtp
Organization Taughannock Networks
Message-ID <[email protected]>
It appears that Ned Freed  <[email protected]> said:
>What this means is that implementations will have to support both
>names for a considerable period of time. That's considerably
>more expensive than switching the value of a single constant.

Quite right.

I also note, once again, that if you want to record an envelope recipient
address, there is quite a lot of existing practice with Envelope-To and X- variants.
We could easily document both that use and the loop breaking Delivered-To and
put them in the header registry.  That seems like a simple informational draft.

R's,
John