3.220.78.183
ec2-3-220-78-183.compute-1.amazonaws.com
52.6.148.178
ec2-52-6-148-178.compute-1.amazonaws.com

alt1.aspmx.l.google.com.
alt2.aspmx.l.google.com.
aspmx2.googlemail.com.
aspmx3.googlemail.com.
aspmx4.googlemail.com.
aspmx5.googlemail.com.
aspmx.l.google.com.