104.28.10.16
104.28.11.16
172.67.128.253

2606:4700:3030::681c:a10
2606:4700:3034::ac43:80fd
2606:4700:3037::681c:b10

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