Hi Hannah and Vittorio, thank you both! Hannah, your point that reconstruction is only exact up to DKIM2's canonicalization is very helpful: a co-existing signature would need a relaxed, flattening canonicalization (header whitespace, folding, case, etc) to survive, whereas a strict byte-exact match would break.
Vittorio, I understand it shouldn't be relied upon as a general guarantee. It can work where a cooperative intermediary records its changes, but it isn't something to rely on generally. I appreciate you both taking the time, Gino _______________________________________________ Ietf-dkim mailing list -- [email protected] To unsubscribe send an email to [email protected]
