inbound-smtp.us-east-1.amazonaws.com.
d3ag2m1fcrqg9v.cloudfront.net.
2600:9000:20c7:3800:0:dd2b:f8c0:93a1
2600:9000:20c7:ba00:0:dd2b:f8c0:93a1
2600:9000:20c7:b800:0:dd2b:f8c0:93a1
2600:9000:20c7:2800:0:dd2b:f8c0:93a1
2600:9000:20c7:3a00:0:dd2b:f8c0:93a1
2600:9000:20c7:da00:0:dd2b:f8c0:93a1
2600:9000:20c7:2000:0:dd2b:f8c0:93a1
2600:9000:20c7:8400:0:dd2b:f8c0:93a1
d247o9mewm9g31.cloudfront.net.
2600:9000:20c7:8000:1b:d1b:eb40:93a1
2600:9000:20c7:5600:1b:d1b:eb40:93a1
2600:9000:20c7:f000:1b:d1b:eb40:93a1
2600:9000:20c7:8c00:1b:d1b:eb40:93a1
2600:9000:20c7:d600:1b:d1b:eb40:93a1
2600:9000:20c7:da00:1b:d1b:eb40:93a1
2600:9000:20c7:6800:1b:d1b:eb40:93a1
2600:9000:20c7:c000:1b:d1b:eb40:93a1
alt1.aspmx.l.google.com.
alt2.aspmx.l.google.com.
alt3.aspmx.l.google.com.
alt4.aspmx.l.google.com.
aspmx.l.google.com.
www5.gwu.edu.
d1dyawemcj8oql.cloudfront.net.
2600:9000:225c:600:9:69ec:8f40:93a1
2600:9000:225c:2200:9:69ec:8f40:93a1
2600:9000:225c:ae00:9:69ec:8f40:93a1
2600:9000:225c:b400:9:69ec:8f40:93a1
2600:9000:225c:400:9:69ec:8f40:93a1
2600:9000:225c:9200:9:69ec:8f40:93a1
2600:9000:225c:d000:9:69ec:8f40:93a1
2600:9000:225c:ca00:9:69ec:8f40:93a1
d1fz827iqcwvjd.cloudfront.net.
2600:9000:20c7:3e00:6:851e:ea40:93a1
2600:9000:20c7:de00:6:851e:ea40:93a1
2600:9000:20c7:ca00:6:851e:ea40:93a1
2600:9000:20c7:7a00:6:851e:ea40:93a1
2600:9000:20c7:b200:6:851e:ea40:93a1
2600:9000:20c7:5000:6:851e:ea40:93a1
2600:9000:20c7:e400:6:851e:ea40:93a1
2600:9000:20c7:4200:6:851e:ea40:93a1