shell:$ nslookup -timeout=2 -retry=1 'webmail.adusp.org.br'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
webmail.adusp.org.br	canonical name = mail.hostinger.com.
mail.hostinger.com	canonical name = mail.hostinger.com.cdn.cloudflare.net.
Name:	mail.hostinger.com.cdn.cloudflare.net
Address: 104.18.178.99
Name:	mail.hostinger.com.cdn.cloudflare.net
Address: 104.18.177.99
Name:	mail.hostinger.com.cdn.cloudflare.net
Address: 2606:4700::6812:b263
Name:	mail.hostinger.com.cdn.cloudflare.net
Address: 2606:4700::6812:b163