13.249.71.165
server-13-249-71-165.dfw53.r.cloudfront.net
13.249.71.185
server-13-249-71-185.dfw53.r.cloudfront.net
13.249.71.81
server-13-249-71-81.dfw53.r.cloudfront.net
13.249.71.85
server-13-249-71-85.dfw53.r.cloudfront.net

2600:9000:2011:1200:8:a7b8:6740:93a1
2600:9000:2011:3000:8:a7b8:6740:93a1
2600:9000:2011:3600:8:a7b8:6740:93a1
2600:9000:2011:a000:8:a7b8:6740:93a1
2600:9000:2011:c800:8:a7b8:6740:93a1
2600:9000:2011:d600:8:a7b8:6740:93a1
2600:9000:2011:fa00:8:a7b8:6740:93a1
2600:9000:2011:fc00:8:a7b8:6740:93a1

inbound-smtp.us-west-2.amazonaws.com.