[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 <billings at negate.org> >> >>> On Fri, Nov 04, 2016 at 12:30:02PM +0000, 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- 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 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. <https://help.yahoo.com/kb/SLN24016.html> <https://yahoomail.tumblr.com/post/82426900353/yahoo-dmarc-policy-change-what-should-senders#_=_>