Dig Domains
; <<>> DiG Dig.Domains <<>> any mx.smtpapi.net
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 64817
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;mx.smtpapi.net.		IN ANY

;; ANSWER SECTION:
mx.smtpapi.net.		900 IN CNAME mx.sendgrid.net.

;; Query time: 69 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Tue Aug 16 03:26:43 UTC 2022
;; MSG SIZE  rcvd: 69