23.22.38.156
ec2-23-22-38-156.compute-1.amazonaws.com
52.55.17.68
ec2-52-55-17-68.compute-1.amazonaws.com

mail1.groupsite.com.
mail2.groupsite.com.
mail3.groupsite.com.

23.23.141.63
ec2-23-23-141-63.compute-1.amazonaws.com
34.230.160.238
ec2-34-230-160-238.compute-1.amazonaws.com
44.197.34.36
ec2-44-197-34-36.compute-1.amazonaws.com
52.21.103.235
ec2-52-21-103-235.compute-1.amazonaws.com
52.55.17.68
ec2-52-55-17-68.compute-1.amazonaws.com
52.71.218.57
ec2-52-71-218-57.compute-1.amazonaws.com