search for: _dmarc

...es from domains that > have DMARC policy "reject". I have you such an address, use it. Try to do > two things at the same time: Regular postings and "test DMARC postings". Hope this is wrapped. From web client. > Groeten > Geert Stappers > > $ host -t txt _dmarc.yahoo.com > _dmarc.yahoo.com descriptive text "v=DMARC1\; p=reject\; sp=none\; pct=100\; rua=mailto:dmarc-yahoo-rua at yahoo-inc.com, mailto:dmarc_y_rua at yahoo.com\;" p=reject is the annoying and aggressive part.

...as been disabled" notification. It looks like > users with gmail addresses are affected. > > CentOS admins are looking into this issue (I believe). > > Akemi I believe this is a DMARC issue. Yahoo, among other places, has set their dmarc records to p=reject: dig +short txt _dmarc.yahoo.com "v=DMARC1; p=reject; pct=100; rua=mailto:dmarc_y_rua at yahoo.com;" 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'll likely get some...

...it goes further. As in "Let it happen". There will be messages from domains that have DMARC policy "reject". I have you such an address, use it. Try to do two things at the same time: Regular postings and "test DMARC postings". Groeten Geert Stappers $ host -t txt _dmarc.yahoo.com _dmarc.yahoo.com descriptive text "v=DMARC1\; p=reject\; sp=none\; pct=100\; rua=mailto:dmarc-yahoo-rua at yahoo-inc.com, mailto:dmarc_y_rua at yahoo.com\;" ----- message from mailman at zytor.com ----- Date: Sun, 04 Jan 2015 06:52:28 -0800 From: mailman at zytor.com To: sysl...

( previous thread at http://www.syslinux.org/archives/2015-January/023050.html ) > > <info from="web interface mailman" extra_from="backend mailinglist software"> > dmarc_moderation_action Option > dmarc_moderation_action (privacy): Action to take when anyone posts > to the list from a domain with a DMARC Reject/Quarantine Policy. > >

...5:05 -0500 > From: Johnny Hughes via CentOS <centos at centos.org> > > On 06/15/2018 05:18 PM, Richard wrote: >> >> >> I believe this is a DMARC issue. Yahoo, among other places, has set >> their dmarc records to p=reject: >> >> dig +short txt _dmarc.yahoo.com >> "v=DMARC1; p=reject; pct=100; rua=mailto:dmarc_y_rua at yahoo.com;" >> >> 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...

...the checksum of the message, so the dkim signature is no longer valid, therefore when any receiving mail server checks the DKIM sig it fails as it did with my own mailserver. 3. The centos server does NOT add its own DKIM sig and appears to have no DMARC record in the DNS (dig txt _dmarc.centos.org.) These are not necessarily a good idea anyway for mail coming from a mailing list server because in order to add a DKIM sig the from of the message would have to be changed to name at centos.org since the mailman server can't itself sign for a sender from another do...

...ks like >> users with gmail addresses are affected. >> >> CentOS admins are looking into this issue (I believe). >> >> Akemi > > I believe this is a DMARC issue. Yahoo, among other places, has set > their dmarc records to p=reject: > > dig +short txt _dmarc.yahoo.com > "v=DMARC1; p=reject; pct=100; rua=mailto:dmarc_y_rua at yahoo.com;" > > 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, yo...

Did we work out the technical reason why some users that post to the list are getting dumped into gmail spam? Ta, Andrew

...server, i would fix the mail setup not samba. I just cant tell much about exim, i prefer postfix. But this like might help, it shows a lot, maybe it helps reviewing the setup and add improvements. https://bitlair.nl/Projects/Mailserver_with_Debian,_Exim,_spamassassin,_greylistd,_DKIM,_SRS,_SPF,_DMARC,_forwarding,_LDAP,_dovecot,_LMTP,_disk_crypto I've about the same but in a postfix setup. Greetz, Louis

...00 IN CNAME teo-en-ming.com. pop 14400 IN CNAME teo-en-ming.com. pop3 14400 IN CNAME teo-en-ming.com. imap 14400 IN CNAME teo-en-ming.com. webmail 14400 IN A 3.21.30.127 cpanel 14400 IN A 3.21.30.127 cwp 14400 IN A 3.21.30.127 www 14400 IN CNAME teo-en-ming.com. ftp 14400 IN CNAME teo-en-ming.com. _dmarc 14400 IN TXT "v=DMARC1; p=none" @ 14400 IN TXT "v=spf1 +a +mx +ip4:3.21.30.127 ~all" ns1.teo-en-ming.com. 14400 IN A 3.21.30.127 ns2.teo-en-ming.com. 14400 IN A 3.12.224.179 default._domainkey 14400 IN TXT "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDEXk5wQIfKJ...

Hai Marco, Maybe the winbind cache time is set to low for this. Greetz, Louis > -----Oorspronkelijk bericht----- > Van: samba [mailto:samba-bounces at lists.samba.org] Namens > Marco Gaiarin via samba > Verzonden: donderdag 17 januari 2019 15:55 > Aan: samba at lists.samba.org > Onderwerp: Re: [Samba] Winbind, cached logons and 'user > persistency'... >