shell:$ nslookup -timeout=2 -retry=1 'mail.paket.sekolah.mu'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	mail.paket.sekolah.mu
Address: 18.139.55.112
Name:	mail.paket.sekolah.mu
Address: 18.136.225.152