Sometimes I see this mailru-verification
DNS record.
I've Googled - and Yandexed ;) - but I found nothing about it.
I suspected that is a kind of russian SPF implementation...
dig example.com TXT
outputs
; <<>> DiG 9.9.5-3ubuntu0.8-Ubuntu <<>> example.com TXT
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 56090
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;example.com. IN TXT
;; ANSWER SECTION:
example.com. 14400 IN TXT "v=spf1 include:xxxxxx.xx -all"
example.com. 14400 IN TXT "mailru-verification: xxxxxxxxx"
example.com. 14400 IN TXT "spf2.0/pra include:xxxxxxx.xx -all"
;; Query time: 78 msec
;; SERVER: 127.0.1.1#53(127.0.1.1)
;; WHEN: Sat Apr 02 12:36:52 CEST 2016
;; MSG SIZE rcvd: 210
Does someone know something about it? Thanks!