Re: [CentOS] mailing list mail from @yahoo addresses

[lejeczek]

On 04/11/16 18:48, John R Pierce wrote:

On 11/4/2016 11:29 AM, lejeczek wrote:
well, I'm not sure if I feel better now, I understand 
there must a plethora of people who fidgeted like me 
trying to understand what happened (some time ago) - I 
see I'm not alone, but... it seems larger issue. Would be 
great if list maintainer(s) look into this and even 
greater if can fix it. 


we can't fix yahoo, they broke this.  the only "solution" 
is to hack the 'from' of emails sent to the list so they 
are 'from' the list server rather than 'from' the person 
who sent the message. I've seen a few lists that do 
this, its awful seeing every message be 'From: 
'





samba@list has it working, it does not look that bad.

My, Name via samba 
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] mailing list mail from @yahoo addresses

[Richard]

> Date: Wednesday, November 09, 2016 20:42:58 +
> From: Phil Wyett 
>
> On Wed, 2016-11-09 at 21:25 +0100, Antonio Trande wrote:
>> On 11/09/2016 09:21 PM, Phil Wyett wrote:
>> > On Wed, 2016-11-09 at 12:16 -0800, Bart Schaefer wrote:
>> >> For what it's worth, I just received the auto-notification of
>> >> having been kicked off the list for excessive bounces.  So
>> >> gmail is honoring Yahoo's DMARC.
>> > 
>> > Hi,
>> > 
>> > Your not the only one. I got it a few hours ago.
>> > 
>> > Regards
>> > 
>> > Phil
>> > 
>> > 
>> 
>> Me too.
>> Must we do something about?
> 
> Hi,
> 
> I re-enabled and hope it is just a quirk. We'll see in time.
> 
> Regards
> 
> Phil

If your mail provider enforces DMARC, whether you get dropped from a
list and how often depends on the frequency of messages sent to the
list from @yahoo correspondents and the list's "drop on bounces" (how
often over what time period) settings. This list doesn't appear to
have that many people who post from @yahoo addresses, and the "drop"
settings seem to be fairly tolerant.


___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] mailing list mail from @yahoo addresses

[Phil Wyett]

On Wed, 2016-11-09 at 21:25 +0100, Antonio Trande wrote:
> On 11/09/2016 09:21 PM, Phil Wyett wrote:
> > On Wed, 2016-11-09 at 12:16 -0800, Bart Schaefer wrote:
> >> For what it's worth, I just received the auto-notification of having been
> >> kicked off the list for excessive bounces.  So gmail is honoring Yahoo's
> >> DMARC.
> > 
> > Hi,
> > 
> > Your not the only one. I got it a few hours ago.
> > 
> > Regards
> > 
> > Phil
> > 
> > 
> 
> Me too.
> Must we do something about?

Hi,

I re-enabled and hope it is just a quirk. We'll see in time.

Regards

Phil

-- 

Google+: https://goo.gl/CPjvNo
Blog: https://philwyett-hemi.blogspot.co.uk/
GitLab: https://gitlab.com/philwyett_hemi/






signature.asc
Description: This is a digitally signed message part
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] mailing list mail from @yahoo addresses

[Richard]

> Date: Wednesday, November 09, 2016 21:25:50 +0100
> From: Antonio Trande 
>
> On 11/09/2016 09:21 PM, Phil Wyett wrote:
>> On Wed, 2016-11-09 at 12:16 -0800, Bart Schaefer wrote:
>>> For what it's worth, I just received the auto-notification of
>>> having been kicked off the list for excessive bounces.  So gmail
>>> is honoring Yahoo's DMARC.
>> 
>> Hi,
>> 
>> Your not the only one. I got it a few hours ago.
>> 
>> Regards
>> 
>> Phil
>> 
>> 
> 
> Me too.
> Must we do something about?

In one of the Yahoo articles I referred to earlier they indicate that
Hotmail and Gmail (in addition to themselves) enforce DMARC. My mail
provider (Rackspace) does now too so I get dropped off various lists
(including this one the other day) every few days.

The issue is in how the mailing list sends out messages. If they are
addressed as if they come from an @yahoo address (e.g,. the original
poster), but not from an authorized yahoo mail server, any mail
server enforcing (in this case yahoo's) DMARC will reject the
message. After enough bounces the mailing list will drop you (with or
without notice). Short of getting your mailing list mail via a
provider that doesn't enforce DMARC this week, there's nothing an
end-user can really do.

>From some lists that I'm on that are handling this, it appears that
mailman 2.1.18 can (or can be made to) deal with the addressing so
that things pass the DMARC test. This list appears to use 2.1.12.


___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] mailing list mail from @yahoo addresses

[Antonio Trande]

On 11/09/2016 09:21 PM, Phil Wyett wrote:
> On Wed, 2016-11-09 at 12:16 -0800, Bart Schaefer wrote:
>> For what it's worth, I just received the auto-notification of having been
>> kicked off the list for excessive bounces.  So gmail is honoring Yahoo's
>> DMARC.
> 
> Hi,
> 
> Your not the only one. I got it a few hours ago.
> 
> Regards
> 
> Phil
> 
> 

Me too.
Must we do something about?

-- 
---
Antonio Trande
mailto: sagitter 'at' fedoraproject 'dot' org
https://fedoraproject.org/wiki/User:Sagitter
GPG Key: 0x6CE6D08A
Check on https://keys.fedoraproject.org/



signature.asc
Description: OpenPGP digital signature
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] mailing list mail from @yahoo addresses

[Phil Wyett]

On Wed, 2016-11-09 at 12:16 -0800, Bart Schaefer wrote:
> For what it's worth, I just received the auto-notification of having been
> kicked off the list for excessive bounces.  So gmail is honoring Yahoo's
> DMARC.

Hi,

Your not the only one. I got it a few hours ago.

Regards

Phil

-- 

Google+: https://goo.gl/CPjvNo
Blog: https://philwyett-hemi.blogspot.co.uk/
GitLab: https://gitlab.com/philwyett_hemi/






signature.asc
Description: This is a digitally signed message part
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] mailing list mail from @yahoo addresses

[Bart Schaefer]

For what it's worth, I just received the auto-notification of having been
kicked off the list for excessive bounces.  So gmail is honoring Yahoo's
DMARC.
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] mailing list mail from @yahoo addresses

[John R Pierce]

On 11/4/2016 11:29 AM, lejeczek wrote:
well, I'm not sure if I feel better now, I understand there must a 
plethora of people who fidgeted like me trying to understand what 
happened (some time ago) - I see I'm not alone, but... it seems larger 
issue. Would be great if list maintainer(s) look into this and even 
greater if can fix it. 


we can't fix yahoo, they broke this.  the only "solution" is to hack the 
'from' of emails sent to the list so they are 'from' the list server 
rather than 'from' the person who sent the message. I've seen a few 
lists that do this, its awful seeing every message be 'From: 
'



--
john r pierce, recycling bits in santa cruz

___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] mailing list mail from @yahoo addresses

[lejeczek]

On 04/11/16 17:18, Richard wrote:

[extracted from "Re: [CentOS] dnf and failing epel" message chain.]



From: lejeczek peljasz at yahoo.co.uk
Date: Fri Nov 4 13:39:40 UTC 2016

Date: Friday, November 04, 2016 08:51:07 -0400
From: Jonathan Billings 


On Fri, Nov 04, 2016 at 12:30:02PM +, lejeczek wrote:

ps. I wonder if my email get though to the group, I receive
mailing list emails but I don't get my own emails?

You can sign into this URL:

https://lists.centos.org/mailman/listinfo/centos

... and change the settings.  One of the settings is whether to
"Receive your own posts to the list".  Make sure it is marked as
"yes".

it's been there always.
Some mailing lists I do have this problem with, others work
fine, and it's not the settings reason, certainly not that
one setting and rest looks ok too.
I wonder if Centos mailman uses some blocking/blacklisting?
But then why the group gets my emails but me?

I believe that the issue is that yahoo updated their dmarc record a
bit ago, so now won't accept mail, from 3rd-parties, that has an
@yahoo... "mailfrom", as yours do on this list.

If the non-@yahoo mailing sender doesn't do what's necessary to deal
with enforced dmarc, and your mail provider enforces dmarc, you won't
see messages from @yahoo correspondents -- which is likely why you
aren't seeing your own list messages. Additionally if a mailing list
has enough @yahoo posters, this can generate sufficient bounces to
get you kicked off the mailing list on a regular basis.

There are various ways for mailers/mailing lists to deal with the
enforced dmarc. My understanding is that with Mailman, which this
list uses, one has to upgrade to -3.


   Email service providers can't send to/from Yahoo Mail addresses

   Questions about our DMARC policy
   Why are my emails bouncing?

   We've updated the DMARC record with "p=reject" for multiple
   Yahoo domains.

   This means all DMARC compliant mail receivers (including Yahoo,
   Hotmail, and Gmail) are now bouncing emails sent as "@yahoo.com"
   addresses that aren't sent through Yahoo servers. Any messages
   without a proper Domain Keys Identified Mail (DKIM) signature or
   Sender Policy Framework (SPF) alignment will be rejected.





well, I'm not sure if I feel better now, I understand there 
must a plethora of people who fidgeted like me trying to 
understand what happened (some time ago) - I see I'm not 
alone, but... it seems larger issue. Would be great if list 
maintainer(s) look into this and even greater if can fix it.

many! thanks Richard


___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos


___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos