shell:$ nslookup -timeout=2 -retry=1 'mta-sts.aquafil.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
mta-sts.aquafil.com	canonical name = aquafil-com.mta-sts.tech.
Name:	aquafil-com.mta-sts.tech
Address: 13.225.196.18
Name:	aquafil-com.mta-sts.tech
Address: 13.225.196.74
Name:	aquafil-com.mta-sts.tech
Address: 13.225.196.127
Name:	aquafil-com.mta-sts.tech
Address: 13.225.196.56