Robert Elz wrote, on 09 Sep 2020: > > And thanks for the tutorial on how to use e-mail - but my e-mail client > doesn't have a "reply all" function, I don't want it to, the notion of > just "reply" vs "reply all" is absurdly simplistic. What I have is "reply" > which by default replies to the Reply-To if there is one, otherwise the > From+To+Cc list (more or less the equivalent of what you consider to be > "Reply All" I assume).
There's your problem right there. You are using an email client that is not fit for purpose. > That's the way it should work - the Reply-To field > is the one you are supposed to use to suggest to me where you prefer to have > replies sent The part after the "-" is (partially) correct. However, it in no way implies that email clients should behave the way yours does. The Reply-To header is used to indicate where the author prefers to have replies sent *instead of the address in the From header*. Therefore when replying (using whichever of the reply functions the email client provides) the only difference that the presence of Reply-To should have is that the reply address(es) the client offers contain the Reply-To address(es) in place of the From address. All other addresses (if any) taken from other headers should be the same. Using the presence of Reply-To to decide whether or not to include To+CC is just plain broken. -- Geoff Clare <g.cl...@opengroup.org> The Open Group, Apex Plaza, Forbury Road, Reading, RG1 1AX, England