[openssl-users] mailing list registration renewal - clarify bounce errors

Richard Levitte levitte at openssl.org
Tue Nov 8 07:37:22 UTC 2016

In message <CADqLbz+3z=ENw9rdJ-3ivd-xa-05-DJ7RGvV4zEUFNq8BxYK2g at mail.gmail.com> on Mon, 7 Nov 2016 21:50:13 +0300, Dmitry Belyavsky <beldmit at gmail.com> said:

beldmit> Hello Rich,
beldmit> On Mon, Nov 7, 2016 at 8:34 PM, Salz, Rich <rsalz at akamai.com> wrote:
beldmit>     > I can find no evidence of "excessive bounces .." so I am just
beldmit>     asking here, is
beldmit>     > this a standard clean up of the ML or have you really received
beldmit>     excessive
beldmit>     > bounces from my email address ?
beldmit>     The latter.
beldmit>     We have seen some more reports of this recently, and are
beldmit>     increasing the logging to determine the cause. Interestingly, it's
beldmit>     all from gmail.com addresses.
beldmit> I confirm the receiving the similar message.

The issue is called DMARC, and most certainly with a reject policy,
which basically tells recipients to reject messages that doesn't quite
appear to come from the originator.

This is problematic for mailing lists, that kind of act as a middle
man, and even moreso because rejections end up as bounces to the
mailing list software, which will end up disabling the bouncing
address.  So in the end, it becomes a story of how users from one
domain are capable of throw out everyone else that checks their DMARC

Last time we went through this, we ignored the problem, for reasons I
cannot remember now.  I'll have a closer look at what mailman can
offer and get back to you.

Richard Levitte         levitte at openssl.org
OpenSSL Project         http://www.openssl.org/~levitte/

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