On 15/11/2025 1:23 pm, John Levine wrote:
I'd say that an SMTP extension is a complete non-starter. Having done my
share of MTA hacking, SMTP extensions are an order of magnitude harder than
something that just operates on the message. Even if the something needs
to see what was in the envelope, that's a lot easier to do than inserting
stuff into the middle of the mail transaction.
That's in addition to Alan's point that even if an MTA just relays mail
without changing it, now all those MTAs need the extension too.
I've responded to Alan regarding this point, but I would just like to
reiterate that this is not the case. A DKIM2 system that only relays
would just need to sign using its own key. It would not need to
manipulate the envelope at all.
Regards,
R. Latimer
Inveigle.net
_______________________________________________
Ietf-dkim mailing list -- [email protected]
To unsubscribe send an email to [email protected]
