13.249.12.120
server-13-249-12-120.cdg53.r.cloudfront.net
13.249.12.183
server-13-249-12-183.cdg53.r.cloudfront.net
13.249.12.209
server-13-249-12-209.cdg53.r.cloudfront.net
13.249.12.51
server-13-249-12-51.cdg53.r.cloudfront.net

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