34.243.83.156
ec2-34-243-83-156.eu-west-1.compute.amazonaws.com
52.16.97.223
ec2-52-16-97-223.eu-west-1.compute.amazonaws.com
52.18.74.250
ec2-52-18-74-250.eu-west-1.compute.amazonaws.com

2a05:d018:13f:ab04:4b78:e96e:ef89:dc96
2a05:d018:13f:ab05:63d3:b640:5762:695d
2a05:d018:13f:ab06:c744:5b44:4718:e64a

inbound-smtp.eu-west-1.amazonaws.com.