We have the same issues with Google Groups for our corporation. I would highly recommend against using it unless they fix the spam filtering procedures.
On Sat, Apr 26, 2014 at 9:06 AM, Fred Heutte <[email protected]> wrote: > I don't recommend changing to googlegroups. My office uses it > extensively for staff and external lists and we are finding intermittent > but persistent issues with delivery delays ranging up to 48 hours. > Apparently the internal spam filtering there is very sensitive to small > changes in text or delivery patterns and implements holds of > varying lengths. > > Our inquiries to Google have, of course, not been answered. > > Fred > > ----------------- > >Mailman 2.1.16 has the Threadable change. > > > >On Fri, Apr 25, 2014 at 10:12 AM, kent williams <[email protected]> > wrote: > >> Apparently there is a problem with something called DMARC that big > e-mail > >> providers are implementing. I've quoted the e-mail from Brian > Behlendorf > >> (who is the man behind hyperreal.org) on the subject. > >> > >> The big problem is people with yahoo.com e-mail addresses. The way > EZMLM > >> works is that it takes your e-mail and resends it to all the list > members. > >> Any mail server implementing DMARC rejects e-mails where the FROM: > address > >> is [email protected], but it doesn't come from a yahoo mail server. > >> > >> This has resulted in people getting bounce notices from hyperreal. It > has > >> happened to me, and I don't even have a yahoo.com e-mail address. > >> > >> Bottom line is the hyperreal team is working on a solution, but this > will > >> likely screw up 313 emails for the near term. > >> > >> If you're an e-mail list wizard and can suggest a linux based mailing > list > >> server that can circumvent this stupidity, please let me and > >> ([email protected]) know. > >> > >> > > ------------------------------------------------------------------------------------------------------------------------------------- > >> > >> If you list is still active and hasn't been swept away by folks moving > to > >> Facebook or whatever, you might have heard complaints from > yahoo.comusers, > >> or possibly even folks who have started to see strange bounces where > >> yahoo.com senders are involved. This is due to a current hullabaloo > about > >> an anti-spam tech called DMARC and Yahoo's recent and strict > implementation > >> of it. > >> > >> > http://thehackernews.com/2014/04/yahoos-new-dmarc-policy-destroys-every.html > >> > >> DMARC is a system designed to allow domain owners to specify policies > and > >> rules regarding how to deal with email from senders using that domain. > For > >> example, for an email with a From header like: > >> > >> From: Brian <[email protected]> > >> > >> Yahoo published a policy that says unless that email came from Yahoo's > >> servers, it should be rejected. This is a great anti-spam technique > given > >> that lots of spammers use yahoo.com addresses fraudulently (I guess?). > But > >> what it means for senders to mailing lists like those we host at > Hyperreal, > >> when that mail goes through Hyp and comes back to Yahoo's servers, it > >> bounces. Not only that, but that Yahoo sender's mail bounces at Gmail > and > >> other mail service providers who implement DMARC. Those bounces can > cause > >> chaos, of course. Ezmlm/qmail will keep track of those bounces and at > least > >> let subscribers know they're missing messages and why, and shouldn't > unsub > >> those users automatically, but it still causes chaos. > >> > >> More details on technically why this is wrong: > >> > >> http://www.ietf.org/mail-archive/web/ietf/current/msg87153.html > >> > >> Yahoo appears to not get why this is a big deal: > >> > >> > http://yahoo.tumblr.com/post/82426971544/an-update-on-our-dmarc-policy-to-protect- > our-users > >> > >> There is no good fix here. Changing the From: header to say something > like > >> > >> From: Brian Behlendorf via <[email protected]> > >> > >> seems wacky, but it's what Threadable did, specifically for > DMARC-checking > >> recipients and DMARC-policy-publishing sender domains: > >> > >> http://blog.threadable.com/how-threadable-solved-the-dmarc-problem > >> > >> Sadly, though, no open source mailing list manager has implemented this > >> well. Mailman seems to have implemented this partially, but no one's > even > >> talking about this for ezmlm and I doubt it'll happen. I've not decided > >> whether to move the Hyperreal mailing lists to Mailman or something > else, > >> but clearly we need to move off of ezmlm anyways. I was hoping to be > able > >> to choose between a couple of them, but now that choice seems much more > >> narrow (and not necessarily the best - Sympa was looking promising too). > >> > >> Anyways - I am sad that this is how things have played out, that I can't > >> provide a quick resolution to this. For now all I can suggest is asking > >> youryahoo.com users to switch to another domain if they want to > participate. > >> But that sucks as an answer. If anyone has better ideas (or > >> programming/migration talent to contribute) let me know. > > > > > > > >-- > >matt kane > >twitter: the_real_mkb / nynexrepublic > >http://hydrogenproject.com > > > > > >
