$ dig mx purelymail.com ;; ANSWER SECTION: purelymail.com. 86400 IN MX 50 mailserver.purelymail.com. $ dig mailserver.purelymail.com ;; ANSWER SECTION: mailserver.purelymail.com. 60 IN A 18.204.123.63 $ whois 18.204.123.63 OrgName: Amazon Technologies Inc.
whois $(dig +short A $(dig +short MX purelymail.com | head -n 1) | head -n 1)
> our infrastructure runs on the highly reliable AWS cloud,