52.219.106.28
s3-website.us-east-2.amazonaws.com
52.219.106.4
s3-website.us-east-2.amazonaws.com
52.219.110.88
s3-website.us-east-2.amazonaws.com
52.219.111.240
s3-website.us-east-2.amazonaws.com
52.219.177.64
s3-website.us-east-2.amazonaws.com
52.219.179.184
s3-website.us-east-2.amazonaws.com
52.219.80.52
s3-website.us-east-2.amazonaws.com
52.219.80.68
s3-website.us-east-2.amazonaws.com

in1-smtp.messagingengine.com.
in2-smtp.messagingengine.com.