107.21.67.68
ec2-107-21-67-68.compute-1.amazonaws.com
34.198.218.204
ec2-34-198-218-204.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.