34.194.110.24
ec2-34-194-110-24.compute-1.amazonaws.com
52.72.88.16
ec2-52-72-88-16.compute-1.amazonaws.com
54.159.99.144
ec2-54-159-99-144.compute-1.amazonaws.com

kr1-aspmx1.worksmobile.com.
kr1-aspmx2.worksmobile.com.