shell:$ nslookup -timeout=2 -retry=1 'luxotticagroup-my.sharepoint.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
luxotticagroup-my.sharepoint.com	canonical name = luxotticagroup.sharepoint.com.
luxotticagroup.sharepoint.com	canonical name = 2407-ipv4v6e.clump.dprodmgd104.aa-rt.sharepoint.com.
2407-ipv4v6e.clump.dprodmgd104.aa-rt.sharepoint.com	canonical name = 188293-ipv4v6e.farm.dprodmgd104.aa-rt.sharepoint.com.
188293-ipv4v6e.farm.dprodmgd104.aa-rt.sharepoint.com	canonical name = 188293-ipv4v6w.farm.dprodmgd104.sharepointonline.com.akadns.net.
188293-ipv4v6w.farm.dprodmgd104.sharepointonline.com.akadns.net	canonical name = seg1.spo.mira.tm.svc.cloud.microsoft.
Name:	seg1.spo.mira.tm.svc.cloud.microsoft
Address: 52.107.251.147
Name:	seg1.spo.mira.tm.svc.cloud.microsoft
Address: 52.107.251.146
Name:	seg1.spo.mira.tm.svc.cloud.microsoft
Address: 52.107.251.159
Name:	seg1.spo.mira.tm.svc.cloud.microsoft
Address: 52.107.251.148
Name:	seg1.spo.mira.tm.svc.cloud.microsoft
Address: 2603:1061:13f2:13::365:590
Name:	seg1.spo.mira.tm.svc.cloud.microsoft
Address: 2603:1061:13f2:1f::365:590
Name:	seg1.spo.mira.tm.svc.cloud.microsoft
Address: 2603:1061:13f2:12::365:590
Name:	seg1.spo.mira.tm.svc.cloud.microsoft
Address: 2603:1061:13f2:14::365:590