It is even worse than I thought, you really want to stop efforts in fighting phish, by muddling the waters between real domains and fake ones
sigh! On Sun, Feb 7, 2016 at 1:02 PM, John R Levine <[email protected]> wrote: > mailing list. For example. mail from [email protected] turns into >>> [email protected]. >>> >>> Except that @yahoo.com.dmarc.fail is not a domain that exists, and will >> negatively impact the email deliverability. >> > > Why in the world would you say that? It not only exists, it's DNSSEC > signed which is more than you can say about linkedin.com. > > Forwarding email addresses in yahoo.com.dmarc.com exist for a couple of > days after someone at the corresponding yahoo.com address sends mail > through any of my mailing lists, same for any other address in a domain > with a DMARC policy. > > R's, > John > > ; <<>> DiG 9.8.3-P1 <<>> yahoo.com.dmarc.fail mx +dnssec > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 30940 > ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 2, AUTHORITY: 6, ADDITIONAL: 1 > > ;; OPT PSEUDOSECTION: > ; EDNS: version: 0, flags: do; udp: 4096 > ;; QUESTION SECTION: > ;yahoo.com.dmarc.fail. IN MX > > ;; ANSWER SECTION: > yahoo.com.dmarc.fail. 3585 IN MX 20 mail1.iecc.com. > yahoo.com.dmarc.fail. 3585 IN RRSIG MX 8 2 3600 20160403000000 > 20160201054514 58563 dmarc.fail. > IZIPS60KsnOEFMX/gYo/3o8zzlIzfhFTrmo2IkbKMLWoWQPIAwXLZRDk > jXXmymrxYSJ1k3yUUVztCSKzDBWFu4WvYiUwpc9NbG3v7DdN1OwUkxcM > RgjmqjMxwPcQI1RFoJkgPD1V3azJDOV/f73bd4HPimVD5r6SP/s/v3gc 1s8= > > ;; AUTHORITY SECTION: > *.k1602._domainkey.dmarc.fail. 7185 IN NSEC dmarc.fail. TXT RRSIG NSEC > *.k1602._domainkey.dmarc.fail. 7185 IN RRSIG NSEC 8 4 7200 > 20160403000000 20160201054514 58563 dmarc.fail. > Ue/IR/Gdy4DJHsEJgToONRMP9j5Skyf8hxIHCCGPTyNc+URgtJFDpilS > 21MTC7zuCIt4fIKV8x428VJDzg2fZzMFQNDuMmtvs8aLMVL6TGAfKlVQ > NjbYowFrS6g5xTFpkm5SdJmNnLreymuVksVFeniO2Td2+bn2Vvr7hzfc iAw= > dmarc.fail. 1429 IN NS sdn.iecc.com. > dmarc.fail. 1429 IN NS osdn.iecc.com. > dmarc.fail. 1429 IN NS light.lightlink.com. > dmarc.fail. 1429 IN RRSIG NS 8 2 3600 20160403000000 > 20160201054514 58563 dmarc.fail. > sZOP1+0qp3pCrk0l9VcEivHak4+v2I32jp9m6iysYTO49m6s6qadiyIy > I3O21vr4Tk5V+XoN9F/zaIctT4nvDH2mIiDN24cB2uGb05zRg809ars5 > WqOOBCBkYiKJUNi95LmZ0W2VCXqVwTxEYLC4r9EFoBGEm/dloDcWVjG7 Z6A= > > ;; Query time: 0 msec > ;; SERVER: 192.168.80.2#53(192.168.80.2) > ;; WHEN: Sun Feb 7 15:57:10 2016 > ;; MSG SIZE rcvd: 707 >
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