18.64.18.123
server-18-64-18-123.cgk50.r.cloudfront.net
18.64.18.29
server-18-64-18-29.cgk50.r.cloudfront.net
18.64.18.9
server-18-64-18-9.cgk50.r.cloudfront.net
18.64.18.98
server-18-64-18-98.cgk50.r.cloudfront.net

2600:9000:2135:0:4:89d3:3d40:93a1
2600:9000:2135:1400:4:89d3:3d40:93a1
2600:9000:2135:3e00:4:89d3:3d40:93a1
2600:9000:2135:5600:4:89d3:3d40:93a1
2600:9000:2135:7c00:4:89d3:3d40:93a1
2600:9000:2135:8400:4:89d3:3d40:93a1
2600:9000:2135:9200:4:89d3:3d40:93a1
2600:9000:2135:e000:4:89d3:3d40:93a1

mailstore1.secureserver.net.
smtp.secureserver.net.