3.122.27.233
ec2-3-122-27-233.eu-central-1.compute.amazonaws.com
3.122.66.183
ec2-3-122-66-183.eu-central-1.compute.amazonaws.com
3.123.247.89
ec2-3-123-247-89.eu-central-1.compute.amazonaws.com

smtp1.digital14.com.
smtp1.katim.com.
smtp2.digital14.com.