shell:$ nslookup -timeout=2 -retry=1 'gwemail20.outgw.tn'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	gwemail20.outgw.tn
Address: 197.10.250.10
Name:	gwemail20.outgw.tn
Address: 41.231.50.10
Name:	gwemail20.outgw.tn
Address: 2001:4350:2048:0:aaaa:a:0:10
Name:	gwemail20.outgw.tn
Address: 2001:4350:1:1:aaaa:a:0:10