23.43.242.121
a23-43-242-121.deploy.static.akamaitechnologies.com
23.43.242.129
a23-43-242-129.deploy.static.akamaitechnologies.com

2600:140a::172b:f279
2600:140a::172b:f281

alt1.aspmx.l.google.com.
alt2.aspmx.l.google.com.
aspmx2.googlemail.com.
aspmx3.googlemail.com.
aspmx.l.google.com.