Yahoo is not actually doing any of the rejecting... They've just published a record that says "If you care about DMARC, please reject mail from a yahoo.com user that doesn't come from a yahoo.com server."
On Thu, May 15, 2014 at 3:26 PM, David Lang <da...@lang.hm> wrote: > On Thu, 15 May 2014, Edward Ned Harvey (lopser) wrote: > > From: Brad Beyenhof [mailto:bbeyen...@icloud.com] >>> >>> Ah, Reply-To munging. Last time this came up on our local LUG mailing >>> list, >>> there was quite a storm of opinion. However, if making a stance NOT to >>> munge would prevent some people from participating, I think everybody >>> would've been in favor. >>> >> >> Well, in the past, there was a lot of room for opinion. But now and >> moving forward, there isn't a lot of alternative. See this article: >> >> http://www.pcworld.com/article/2141120/yahoo-email- >> antispoofing-policy-breaks-mailing-lists.html >> >> (a) It's not just yahoo, this is actually a reasonable and good policy, >> and it's been growing for years, and you can expect it to continue growing, >> and it's only a matter of time before gmail etc do the same. >> >> (b) When yahoo users post to a list, their mail gets distributed to >> recipients of the list, and the recipient mail servers bounce the message. >> So mail addressed to y...@gmail.com or m...@nedharvey.com get bounced. And >> mailman is likely to unsubscribe us as a result. (Not the yahoo sender.) >> >> Assuming the list is run on mailman, the one and only obvious correct >> action is to read the DMARC page on Mailman (posted in my OP message) and >> choose one of the solutions that they recommend. The most obvious of which >> is the Reply-To munging. >> > > Well, you are making quite an assumption when you say that what they are > doing is correct and that the only way to do anything going forward is to > munge things to work with Yahoo > > This isn't the first time a major e-mail provider had done something > stupid, and it won't be the last (and yes, breaking mailing lists for their > users with no notice is stupid). > > what will you do when two different providers insist on two contradictory > things? > > This is listed as an "experiment" on the part of Yahoo. Well, the > experiment is showing that this is a bad thing to do. > > If they want to quaranteen mail that doesn't pass DMARC and then run other > tests against it, that's fine. But to just reject it is not. > > David Lang > > > > _______________________________________________ > Tech mailing list > Tech@lists.lopsa.org > https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech > This list provided by the League of Professional System Administrators > http://lopsa.org/ >
_______________________________________________ Tech mailing list Tech@lists.lopsa.org https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
