104.25.104.16
104.25.105.16
172.67.64.121

2606:4700:20::6819:6810
2606:4700:20::6819:6910
2606:4700:20::ac43:4079

alt1.aspmx.l.google.com.
alt2.aspmx.l.google.com.
alt3.aspmx.l.google.com.
alt4.aspmx.l.google.com.
aspmx.l.google.com.
inbound-smtp.us-west-2.amazonaws.com.