; <<>> DiG Dig.Domains <<>> any mx4.ig.correio.biz
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 8697
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;mx4.ig.correio.biz.	IN ANY

;; Query time: 562 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Mon Oct 03 16:43:26 UTC 2022
;; MSG SIZE  rcvd: 47