[UCIMC-Tech] Mailman 2.1.18? - DMARC: Yahoo vs internet mailing lists

Thu May 8 07:30:36 EDT 2014

thanks.  So until that time, do you recommend *Mung From* or *Wrap
Message*setting for*
from_is_list*?

- Jay

On Wed, May 7, 2014 at 9:25 PM, Josh King <jking at chambana.net> wrote:

> I upgraded mailman late last night, apologies for needing time to do a
> little additional research.
>
> The options are now permitted under General Options in list
> administration. I figure I'll leave it up to you guys to experiment with
> the settings you want for from_is_list, unless you want me to do it,
> which is fine too. Mailman seems to recommend that we set up DKIM
> signing for domains for which we enable munging. I had been planning on
> setting this up at some point anyway, but I likely won't get to it until
> at least this weekend.
>
> On 05/06/2014 11:58 AM, Stuart Levy wrote:
> > Yes, thank you, having that 2.1.16 from_is_list workaround, even though
> > imperfect, would be a great relief!
> >
> > And, thanks, too, for pursuing hotmail.   Blast them.
> >
> > On 5/6/14 9:28 AM, Josh King wrote:
> >> Actually, it looks like there is a (not as good) DMARC workaround in
> >> 2.1.16. I'm going to try updating to that in order to try it out, and
> >> see if that will allow us to get around Yahoo until 2.1.18 ends up in
> >> the repositories officially.
> >>
> >> On 05/06/2014 10:25 AM, Josh King wrote:
> >>> Thanks for tracking down this issue. Unfortunately the newest version
> >>> of Mailman available for Debian (even unstable) is 2.1.16. We do have
> >>> our own apt repository, though. I'll see if I can roll an updated dpkg,
> >>> though it'll be a little risky. It's pretty ridiculous of Yahoo to do
> >>> this.
> >>>
> >>> Btw, I've applied for hotmail delisting twice, but gotten just
> >>> automated messages repeating the nonsense about namespace mining that
> >>> shows up in the logs anyway. I'm currently looking at whether I can
> >>> switch just the mailinglists to a different IP in our allocation to
> >>> work around it.
> >>>
> >>> On Tue 06 May 2014 07:25:18 AM EDT, Jay Schubert wrote:
> >>>> I can't do the mailman upgraded, but I will mention that BTP really
> >>>> needs this fixed.  We're dead in the water with our three lists until
> >>>> this is resolved.
> >>>>
> >>>>
> >>>> On Mon, May 5, 2014 at 11:56 PM, Stuart Levy <stuartnlevy at gmail.com
> >>>> <mailto:stuartnlevy at gmail.com>> wrote:
> >>>>
> >>>>     Dear IMC Tech people,
> >>>>
> >>>>     I'm sorry to bother you again, but am wondering if you can help
> >>>>     with this, or if I can, or both.
> >>>>
> >>>>     Having read last month that Yahoo's DMARC mail trust settings were
> >>>>     breaking mailing lists including the IETF's own -
> >>>>
> http://www.ietf.org/mail-archive/web/ietf/current/msg87153.html
> >>>>     ... I wondered why it wasn't happening here.   Well, it is.
> >>>>
> >>>>     The effect is that, when a Yahoo user writes to an IMC mailing
> >>>>     list which has other Yahoo users as non-digest recipients, all of
> >>>>     them - sender and receivers - get bounce messages.   The receivers
> >>>>     get fatal bounces which immediately suspend them from the list.
> >>>>     This is happening now.
> >>>>
> >>>>     There are workarounds for this in the latest version of Mailman,
> >>>>     2.1.18, released just this last weekend --
> >>>>
> >>>>         release notes here:
> >>>>
> >>>>
> https://mail.python.org/pipermail/mailman-users/2014-May/076787.html
> >>>>
> >>>>         including this:
> >>>>
> >>>>           [...] a new Privacy options -> Sender filters ->
> dmarc_moderation_action
> >>>>           feature which applies to list messages where the From:
> address is in a
> >>>>           domain which publishes a DMARC policy of reject or possibly
> quarantine.
> >>>>           This is a list setting with values of Accept, Wrap Message,
> Munge From, Reject or Discard.
> >>>>           There is a new DEFAULT_DMARC_MODERATION_ACTION
> configuration setting to set the
> >>>>           default for this, and the list admin UI is not able to set
> an action
> >>>>           which is 'less' than the default.
> >>>>
> >>>>     What would it take to get Mailman 2.1.18 on the chambana.net
> >>>>     <http://chambana.net> mailing list server?
> >>>>
> >>>>     _______________________________________________
> >>>>     IMC-Tech mailing list
> >>>>     IMC-Tech at lists.chambana.net <mailto:IMC-Tech at lists.chambana.net>
> >>>>     https://lists.chambana.net/mailman/listinfo/imc-tech
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> IMC-Tech mailing list
> >>>> IMC-Tech at lists.chambana.net
> >>>> https://lists.chambana.net/mailman/listinfo/imc-tech
> >>> --
> >>> Josh King
> >>> PGP Fingerprint: 8269 ED6F EA3B 7D78 F074 1E99 2FDA 4DA1 69AE 4999
> >>>
> >>>
> >>>
> >>>
> >>> _______________________________________________
> >>> IMC-Tech mailing list
> >>> IMC-Tech at lists.chambana.net
> >>> https://lists.chambana.net/mailman/listinfo/imc-tech
> >>>
> >>
> >>
> >> _______________________________________________
> >> IMC-Tech mailing list
> >> IMC-Tech at lists.chambana.net
> >> https://lists.chambana.net/mailman/listinfo/imc-tech
> >
>
> --
> Josh King
> PGP Fingerprint: 8269 ED6F EA3B 7D78 F074 1E99 2FDA 4DA1 69AE 4999
>
>
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