52.205.121.242
ec2-52-205-121-242.compute-1.amazonaws.com
54.173.67.206
ec2-54-173-67-206.compute-1.amazonaws.com
54.84.20.88
ec2-54-84-20-88.compute-1.amazonaws.com

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