I was pondering adding a header item on certain incoming mail. Specifically mail from some lists that do not arrive with an explicit "Reply-To: Some-list".
One might ask why? Well certain older email clients (MUA's?) choose to, upon a "reply" to select the address of the person that posted to the list, while for those lists that contain the "Reply-to:" header item, it will select the list. This forces one to remember to choose "reply all" (or some equivalent) and delete the extraneous address. Simple matter, or so one might think. Not asking, by any stretch, for any list to reconfigure their end, just for this situation. So, back to my pondering. If I were, via some means, to add "Reply-To: The-right-list" this should solve the problem described above. However my "email foo (as distinct from "email fu" stops well short of knowing what this might break upon replying with this doctored header. That is, will it cause "breakage" of certain SPAM/Malware checks, or email tamper detectors. PS. Yes, I am considering "modernizing". But you know how old folks can be. joe a.
