Control: retitle -1 Do not append footers to messages with DKIM headers On Fri, 02 May 2014, Santiago Vila wrote: > For a lot of years this has not been a big problem, but now Yahoo and > others are using a policy called DMARC (built on top of DKIM and SPF) > and at least Yahoo is actually rejecting messages failing these kind > of digital signatures.
The solution is for people to either not sign the bodies of the messages that they are sending, or use Body Length Limits to limit the signature to only the parts of the body which they are sending. Frankly, all of these problems are known,[1] and deploying DMARC without allowing for opt-out or other mitigation practices is kind of silly. Furthermore, we already get numerous unsubscription requests from people who are unable to read the footer, and moving them into the headers would increase those requests even more. I'm not willing to do that for all mail. However, an interesting alternative possibility might be to just not attach footers to messages which contain DKIM headers, as we already do for messages which are signed. 1: https://tools.ietf.org/html/rfc6377#section-3 -- Don Armstrong http://www.donarmstrong.com But if, after all, we are on the wrong track, what then? Only disappointed human hopes, nothing more. And even if we perish, what will it matter in the endless cycles of eternity? -- Fridtjof Nansen _Farthest North_ p152 -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
