On Sun, Apr 13, 2014 at 10:47 PM, Mark Sapiro wrote:
> On 04/13/2014 03:17 PM, Mark Sapiro wrote:
>> On 04/13/2014 03:03 PM, Jim Popovitch wrote:
>>>
>>> DMARC checks alignment of *both* DKIM and SPF, if either is broken DMARC
>>> fails.
>>>
SPF does not check the "From:" header line, and th
On 04/13/2014 03:17 PM, Mark Sapiro wrote:
> On 04/13/2014 03:03 PM, Jim Popovitch wrote:
>>
>> DMARC checks alignment of *both* DKIM and SPF, if either is broken DMARC
>> fails.
>>
>>> SPF does not check the "From:" header line, and that's where the
>>> troubles begin with DMARC.
>>
>> SPF checks
On Sun, Apr 13, 2014 at 10:12 PM, Barry Warsaw wrote:
> On Apr 14, 2014, at 11:03 AM, Stephen J. Turnbull wrote:
>
>>Given that the whole site is at risk, should it be an option for list
>>owners at all?
>
> This is a good point. It may make sense for the site admin to select whether
> some gener
On Apr 14, 2014, at 11:03 AM, Stephen J. Turnbull wrote:
>Given that the whole site is at risk, should it be an option for list
>owners at all?
This is a good point. It may make sense for the site admin to select whether
some general DMARC mitigation approach is enabled for their lists or not, a
Keith Bierman writes:
> For an "announce only" list (viz. only very special people may post, and
> those people aren't from yahoo accounts) will this DMARC issue be easily
> avoided by not allowing any posts from yahoo members (they can read from
> others, correct?)
Yes.
BTW, hardly naive (t
Mark Sapiro writes:
> Mailman 2.1.16 and up already has the ability to either mung the From:
> header or wrap the original post in an outer message From: the list.
>
> The major problem is it requires site configuration action to make this
> option available to list owners.
Given that the wh
On 04/13/2014 06:48 PM, Richard Damon wrote:
>
> When sending a large number of copies of identical emails to a single
> server, you want to batch it into one message with multiple recipients
> (this assumes you are not using VERP, which would cause the messages to
> not be identical).
>
> When t
On 4/13/14, 9:06 PM, Peter Shute wrote:
> Richard Damon wrote:
>
> My guess on how this works is that when you deliver to Gmail,
> one message will actually have many recipients, and you will
> get just a single rejection, which will be charged to the
> first person on the list by mailman. How t
On 04/13/2014 03:22 PM, Peter Shute wrote:
> We just had a list member disabled. Is this likely to be caused by the DMARC
> problem? Here's the header from the attachment in the bounce action
> notification email:
>
> (expanded from ): host
> gmail-smtp-in.l.google.com[2607:f8b0:400e:c03::1
On Sun, Apr 13, 2014 at 9:06 PM, Barry Warsaw wrote:
> On Apr 13, 2014, at 08:48 PM, Jim Popovitch wrote:
>
>>Launchpad is not my forte, so I'm not even sure how to push only my
>>modifications to LP without the upstream branch changes. And yes,
>>I'll be the first to say it's a bit confusing in
On Apr 13, 2014, at 08:48 PM, Jim Popovitch wrote:
>Launchpad is not my forte, so I'm not even sure how to push only my
>modifications to LP without the upstream branch changes. And yes,
>I'll be the first to say it's a bit confusing in it's current branch.
The best way to do it is to submit a m
Richard Damon wrote:
> > We just had a list member disabled. Is this likely to be
> caused by the DMARC problem? Here's the header from the
> attachment in the bounce action notification email:
> >
> > (expanded from ): host
> > gmail-smtp-in.l.google.com[2607:f8b0:400e:c03::1b]
> said: 55
On Sun, Apr 13, 2014 at 8:48 PM, Jim Popovitch wrote:
> On Sun, Apr 13, 2014 at 8:25 PM, Lindsay Haisley wrote:
>> On Thu, 2014-04-10 at 15:35 -0400, Jim Popovitch wrote:
>>> Here's a tried and tested patch just awaiting more use:
>>>
>>> https://code.launchpad.net/~jimpop/mailman/dmarc-reject
>>
On Sun, Apr 13, 2014 at 8:25 PM, Lindsay Haisley wrote:
> On Thu, 2014-04-10 at 15:35 -0400, Jim Popovitch wrote:
>> Here's a tried and tested patch just awaiting more use:
>>
>> https://code.launchpad.net/~jimpop/mailman/dmarc-reject
>
> Jim, I note that what you reference here appears to be a co
On 04/13/2014 03:17 PM, Mark Sapiro wrote:
>
> There are weird issues though. It seems I can't post from my gmail
> address to my yahoo group. I get a non-delivery notice from gmail. I'm
> not sure why. The yahoo group exists and my gmail address is a member
> with posting privileges.
My bad. I
On 04/13/2014 03:25 PM, Keith Bierman wrote:
>
> For an "announce only" list (viz. only very special people may post, and
> those people aren't from yahoo accounts) will this DMARC issue be easily
> avoided by not allowing any posts from yahoo members (they can read from
> others, correct?)
Yes,
On Thu, 2014-04-10 at 15:35 -0400, Jim Popovitch wrote:
> Here's a tried and tested patch just awaiting more use:
>
> https://code.launchpad.net/~jimpop/mailman/dmarc-reject
Jim, I note that what you reference here appears to be a complete branch
version of Mailman. Can you briefly outline exact
On 4/13/14, 6:17 PM, Mark Sapiro wrote:
> On 04/13/2014 03:03 PM, Jim Popovitch wrote:
>> DMARC checks alignment of *both* DKIM and SPF, if either is broken DMARC
>> fails.
>>
>>> SPF does not check the "From:" header line, and that's where the
>>> troubles begin with DMARC.
>> SPF checks sending
On 4/13/14, 6:22 PM, Peter Shute wrote:
> We just had a list member disabled. Is this likely to be caused by the DMARC
> problem? Here's the header from the attachment in the bounce action
> notification email:
>
> (expanded from ): host
> gmail-smtp-in.l.google.com[2607:f8b0:400e:c03::1b] s
We just had a list member disabled. Is this likely to be caused by the DMARC
problem? Here's the header from the attachment in the bounce action
notification email:
(expanded from ): host
gmail-smtp-in.l.google.com[2607:f8b0:400e:c03::1b] said: 550-5.7.1
[2400:8900::f03c:91ff:fedb:b1ff
Many sage responses elided... so back to the naive and foolish questions...
For an "announce only" list (viz. only very special people may post, and
those people aren't from yahoo accounts) will this DMARC issue be easily
avoided by not allowing any posts from yahoo members (they can read from
oth
On 04/13/2014 03:03 PM, Jim Popovitch wrote:
>
> DMARC checks alignment of *both* DKIM and SPF, if either is broken DMARC
> fails.
>
>> SPF does not check the "From:" header line, and that's where the
>> troubles begin with DMARC.
>
> SPF checks sending IPs (of which your IPs won't match Yahoo'
On Sun, Apr 13, 2014 at 4:54 PM, Joseph Brennan wrote:
>
> Jim Popovitch wrote:
>
>> DMARC works off of SPF as well.
>
>
> Not really.
DMARC checks alignment of *both* DKIM and SPF, if either is broken DMARC fails.
> SPF does not check the "From:" header line, and that's where the
> troubles be
Mitra IMAP wrote:
> My native paranoia has caused me to take note of the fact
> that what can only be described as a naked power grab by a
> collection of corporate Internet giants, with blatant
> disregard for the principles of net neutrality, has occurred
> while the attention of the nationa
On 04/13/2014 01:34 PM, Al Black wrote:
>
> Has anybody written a little script to sort through and count the bounces?
> Ideally, it would mail me the results, though part of me thinks it would be
> more ideal to mail to results to me and yahoo abuse.
Yahoo is presumably already getting repor
On 04/13/2014 01:59 PM, Joseph Brennan wrote:
>
>
>> In any event, I'm a unclear about the best solution (if there is one).
Mailman 2.1.16 and up already has the ability to either mung the From:
header or wrap the original post in an outer message From: the list.
There is a minor bug in that t
On 4/13/2014 3:34 PM, Al Black wrote:
Hi gang,
I'm getting a little tired of going through the mail logs just to get an idea of
"how are the damn dmarc bounces" doing today.
Has anybody written a little script to sort through and count the bounces?
Ideally, it would mail me the results, thou
Jim Popovitch wrote:
DMARC works off of SPF as well.
Not really. SPF does not check the "From:" header line, and that's where
the troubles begin with DMARC.
Joseph Brennan
Columbia University IT
--
Mailman-Users mailing list Mailman-U
In any event, I'm a unclear about the best solution (if there is one).
My inclination is to refuse postings from addresses @yahoo.com, since
accepting them will interfere with everyone's use of our list system.
The only issue for me is precisely how to implement it.
Joseph Brennan
Columbi
Thanks for the replies to my other post, and sorry that I didn't search the
archives first, before posting.
In any event, I'm a unclear about the best solution (if there is one).
Is there a solution, that will only modify messages from domains that are like yahoo? I.e., only yahoo posts will b
Hi gang,
I'm getting a little tired of going through the mail logs just to get an idea
of "how are the damn dmarc bounces" doing today.
Has anybody written a little script to sort through and count the bounces?
Ideally, it would mail me the results, though part of me thinks it would be
more i
Thanks for the replies to my other post, and sorry that I didn't search the
archives first, before posting.
In any event, I'm a unclear about the best solution (if there is one).
Is there a solution, that will only modify messages from domains that are like yahoo? I.e., only yahoo posts will b
On Sun, Apr 13, 2014 at 4:01 PM, Richard Damon wrote:
> If you list modifies the message, in particularly either the subject
> line or body, then the signature won't match and the message is supposed
> to not be delivered.
It's worse than just modification of the message/headers. DMARC works
off
On 4/13/14, 3:48 PM, Mark London wrote:
> Hi - Starting this week, I've discovered that emails sent from yahoo
> members on my mailing lists, are not getting delivered to other yahoo
> addresses on my mailing list, including the person who sent the
> message. My SMTP logs show that the message is
On Sun, Apr 13, 2014 at 3:48 PM, Mark London wrote:
> Hi - Starting this week, I've discovered that emails sent from yahoo members
> on my mailing lists, are not getting delivered to other yahoo addresses on
> my mailing list, including the person who sent the message. My SMTP logs
> show that th
Hi - Starting this week, I've discovered that emails sent from yahoo members on my mailing lists, are not getting
delivered to other yahoo addresses on my mailing list, including the person who sent the message. My SMTP logs show
that the message is getting rejected (see below). I'm positive th
My native paranoia has caused me to take note of the fact that what can only be
described as a naked power grab by a collection of corporate Internet giants,
with blatant disregard for the principles of net neutrality, has occurred while
the attention of the national tech media is focused on the
On 04/11/2014 02:06 PM, Mark Sapiro wrote:
>>
>> Development question, is there a way to test the handler against a mail
>> content, outside of the full mailman context?
>>
>> Something like:
>>
>> $ python -some-useful-switch-here MyHandler.py < mymail_withheader.txt
>
>
> withlist is the tool f
* Mark Sapiro :
> On April 11, 2014 3:18:13 PM EDT, Mark Sapiro wrote:
> >On 04/11/2014 05:25 AM, Mark Sapiro wrote:
> >>
> >> Tentatively rescheduled to 17:00 EDT (21:00 GMT) on Friday, 11 Apr in
> >room 525.
> >>
> >> I will attempt to post realtime summaries on #mailman.
> >
> >
> >Due to var
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