-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 In message <799da3ac-0b80-4aa4-857d-25d1b1027...@mtcc.com>, Michael Thomas <m...@mtcc.com> writes
>1) A sender or intermediate can already send a new message per rcpt-to. >This is an operational issue, yes, your MTA will have a configuration setting for this >and has nothing to do with DKIM. Indeed, >lots of transactional mail already does this so you unsubscribe, etc. Only a few percent of email (as seen at the planetary scale mailbox providers) is not unique per recipient (besides unsubscribes, commercial email (whish is the vast bulk of all email today) contains personalised links, images etc for measuring engagement and delivery success. >3) Any intermediary along the mail path is completely at liberty to >(re)sign a message already with DKIM. Yes and many do ... as a result of which a high proportion of email has two signatures and in some cases it can be dozens. This is expensive for recipients who need to check all the signatures to assess which are valid (and then they must reason about reputation in complex ways) - -- richard Richard Clayton Those who would give up essential Liberty, to purchase a Benjamin little temporary Safety, deserve neither Liberty nor Safety. Franklin -----BEGIN PGP SIGNATURE----- Version: PGPsdk version 1.7.1 iQA/AwUBZ8mIN2HfC/FfW545EQIMLgCfTAQd848vRWxi9+SCBkdil1i8+vAAn1/B TLgv7vs88aULbpMHYqjl1s/Q =HC4h -----END PGP SIGNATURE----- _______________________________________________ Ietf-dkim mailing list -- ietf-dkim@ietf.org To unsubscribe send an email to ietf-dkim-le...@ietf.org
