3.221.140.206
ec2-3-221-140-206.compute-1.amazonaws.com
34.199.13.152
ec2-34-199-13-152.compute-1.amazonaws.com
50.17.129.234
ec2-50-17-129-234.compute-1.amazonaws.com

alt1.aspmx.l.google.com.
alt2.aspmx.l.google.com.
alt3.aspmx.l.google.com.
alt4.aspmx.l.google.com.
aspmx.l.google.com.
feedback-smtp.us-east-1.amazonses.com.
inbound-smtp.us-east-1.amazonaws.com.