search for: dmarc

On 06/17/2018 09:11 AM, Alice Wonder via CentOS wrote: > On 06/17/2018 08:52 AM, Michael Hennebry via CentOS wrote: >> I'm petty sure I messed up attributions, so am deleting them. >> >>>> I believe this is a DMARC issue. Yahoo, among other places, has set >>>> their dmarc records to p=reject: >> >>>> So, if your mail hosting provider enforces dmarc,(gmail does) and you >>>> get mail from a list that doesn't rewrite the headers, and people >>>> from pl...

In the same vein, I am receiving forensic DMARC reports from mx01.nausch.org. Whenever I send a message to the mailing list or when my server sends a DMARC report, I'm getting a DMARC Forensic report. It's odd, because the actual report tells me both DKIM and SPF (in the the of a DMARC report) pass... Here is what I am getting : Th...

Hello Together Please i have new following Error, from DMARC Report, if i check my domain on example mxtoolbox i dont see any problems. Any from you know this Eror report, what i need to do to fix this issue? C:\folder>nslookup 94.237.32.243 Server: dns204.data.ch Address: 211.232.23.124 Name: wursti.dovecot.fi Address: 94.237.32.243...

I'm petty sure I messed up attributions, so am deleting them. >> I believe this is a DMARC issue. Yahoo, among other places, has set >> their dmarc records to p=reject: >> So, if your mail hosting provider enforces dmarc,(gmail does) and you >> get mail from a list that doesn't rewrite the headers, and people >> from places like yahoo post to the list, you...

...ons to Syslinux at zytor.com > > Unsubscribe or set options at: > > http://www.zytor.com/mailman/listinfo/syslinux > > As some users may already be aware, my test message has likely > resulted in the suspension of the membership of numerous subscribers > due to Yahoo!'s DMARC policy, the member's email system's DMARC > compliance resulting in a bounce message back at the mailing list and > the mailing list's response to too many bounce messages in a certain > window of time. Subscriber suspension algoritme includes "reset bounce counter"...

On 09/02/2019 10:44, Aki Tuomi via dovecot wrote: > For some reason mailman failed to "munge from" for senders with dmarc policy ;( > > It's now configured to always munge to avoid this again. I'd say, let Mailman throw all people off the list that have enabled DMARC checking without using exceptions for the lists they are on. It's a known fact that DMARC does not cope well with mailing lists. Blin...

Test from Yahoo via Android --Gene

...nux mailing list > Submissions to Syslinux at zytor.com > Unsubscribe or set options at: > http://www.zytor.com/mailman/listinfo/syslinux As some users may already be aware, my test message has likely resulted in the suspension of the membership of numerous subscribers due to Yahoo!'s DMARC policy, the member's email system's DMARC compliance resulting in a bounce message back at the mailing list and the mailing list's response to too many bounce messages in a certain window of time. As far as I can tell, GMail does process the SPF/DKIM/DMARC properties but ignores Yahoo!...

Hi! It seems we accidentically had a high amount of subscribers temporarily disabled due to DMARC on some sender's host. We have now taken actions to prevent this in the future and all temporarily disabled members have been restored. Aki

On Sun, Jan 04, 2015 at 07:37:44PM +0100, Geert Stappers wrote: > On Sun, Jan 04, 2015 at 12:14:51PM -0500, Gene Cumm wrote: <snip/> > > As far as I can tell, GMail does process the SPF/DKIM/DMARC properties > > but ignores Yahoo!'s DMARC policy to reject on failure. > > The Syslinux ML should now be ready for DMARC p=reject > > We shall see how it goes further. :-) If 1 person with a yahoo.com e-mail adres does reply on this message, then we have test result for t...

...he case of barclays.com there are various headers (which I think > make it through the mailing list untouched) but also the body, which > does not; a footer with the list URL is added. The real issue here is that the Mailman configuration for the openssh-unix-dev list does not appear to set `dmarc_moderation_action` (in `Privacy options` - `Sender filters`) to either `Munge From` or `Wrap Message`, which is necessary for lists where either of the following is true: 1. The list accepts posts from senders whose domain applies DMARC policy (`p=reject` or `p=quarantine`) but only implements...

...:13 AM, Alice Wonder via CentOS wrote: > On 06/17/2018 09:11 AM, Alice Wonder via CentOS wrote: >> On 06/17/2018 08:52 AM, Michael Hennebry via CentOS wrote: >>> I'm petty sure I messed up attributions, so am deleting them. >>> >>>>> I believe this is a DMARC issue. Yahoo, among other places, has set >>>>> their dmarc records to p=reject: >>> >>>>> So, if your mail hosting provider enforces dmarc,(gmail does) and you >>>>> get mail from a list that doesn't rewrite the headers, and people >>...

On 2/9/19 10:48 AM, Juri Haberland via dovecot wrote: > On 09/02/2019 10:44, Aki Tuomi via dovecot wrote: >> For some reason mailman failed to "munge from" for senders with dmarc policy ;( >> >> It's now configured to always munge to avoid this again. > > I'd say, let Mailman throw all people off the list that have enabled DMARC > checking without using exceptions for the lists they are on. It's a known > fact that DMARC does not cope we...

Hi guys, when I send e-mails to CentOS mailing list <centos at centos.org>, I received DMARC / DKIM failure reports. Is it possible to solve this problem and if so how? This is the first report: This is an email abuse report for an email message received from IP 208.100.23.70 on Tue, 17 Sep 2019 15:56:25 +0200. The message below did not meet the sending domain's DMARC policy. For mo...

...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- at yahoo mailing sender doesn't do what's necessary to deal with enforced dmarc, and your mail provider enforces dmarc, you won't see mess...

UNSUBSCRIBE > -----Original Message----- > From: dovecot [mailto:dovecot-bounces at dovecot.org] On Behalf > Of Michael A. Peters > Sent: Friday, November 30, 2018 8:21 AM > To: dovecot at dovecot.org > Subject: Re: DMARC policies > > On 11/29/2018 11:13 PM, Aki Tuomi wrote: > > Hi! > > > > It seems we accidentically had a high amount of subscribers > temporarily > > disabled due to DMARC on some sender's host. We have now > taken actions > > to prevent this in the f...

I get about a half dozen rejection messages from various servers when I post to this list. Is there something I need to configure differently in my DMARC record to be better compliant? Daniel

...ert Stappers <stappers at stappers.nl> wrote: > > > On Sun, Jan 04, 2015 at 07:37:44PM +0100, Geert Stappers wrote: > > On Sun, Jan 04, 2015 at 12:14:51PM -0500, Gene Cumm wrote: >?????????? <snip/> > > > As far as I can tell, GMail does process the SPF/DKIM/DMARC properties > > > but ignores Yahoo!'s DMARC policy to reject on failure. > > > > The Syslinux ML should now be ready for DMARC p=reject > > > > We shall see how it goes further.? :-) > > If 1 person with a yahoo.com e-mail adres does reply on this message...

...; Addtional information: >> >> On 2014-12-30 got I as moderator of this ML bounce notification >> with text as >> >> ----- The following addresses had permanent fatal errors ----- >> <***@lnds.dk> >> (reason: 550 5.7.1 The messages violates the DMARC policy of yahoo.com (83c3fcea-9015-11e4-95e4-b82a72d0454d)) >> <***@xs4all.nl> >> (reason: 550 5.7.1 DMARC failure for domain yahoo.com, policy reject) >> <***@yahoo.co.id> >> (reason: 554 5.7.9 Message not accepted for policy reasons. See http://postmas...

...;>> >>> On 2014-12-30 got I as moderator of this ML bounce notification >>> with text as >>> >>> ----- The following addresses had permanent fatal errors ----- >>> <***@lnds.dk> >>> (reason: 550 5.7.1 The messages violates the DMARC policy of yahoo.com (83c3fcea-9015-11e4-95e4-b82a72d0454d)) >>> <***@xs4all.nl> >>> (reason: 550 5.7.1 DMARC failure for domain yahoo.com, policy reject) >>> <***@yahoo.co.id> >>> (reason: 554 5.7.9 Message not accepted for policy reasons. Se...