> The universe of email is replete with software that forgives > messages which do not conform strictly to the grammar that defines > what valid email looks like. This is a long-standing practice known > informally as the robustness principle, originally coined by Jon > Postel: "Be conservative in what you do, be liberal in what you > accept from others."
Well, I'm clearly the outlier here, but I think "be liberal" is protocol nonsense that has been accepted as "conventional wisdom" for far too long now. Put another way, "Accept crud and pass it on" constitutes good protocol design? Gimme a break. More particularly, DKIM is a security protocol which means that "being liberal" is entirely antithetical and highly risky to boot. In short, I don't think any part of DKIM should be based on "be liberal" because it always trades off security. Mark. _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
