18.235.167.251
ec2-18-235-167-251.compute-1.amazonaws.com
52.71.156.141
ec2-52-71-156-141.compute-1.amazonaws.com

alt1.aspmx.l.google.com.
alt2.aspmx.l.google.com.
aspmx2.googlemail.com.
aspmx3.googlemail.com.
aspmx.l.google.com.