Hillsie

# smtp.office365.com. There are a whole lot more ip's to white list including IPv6
### All the smtp.office365.com rules
sudo ufw reject in 587
sudo ufw allow from 127.0.0.1 port 587 to 13.107.9.152/31 port 587
sudo ufw allow from 127.0.0.1 port 587 to 13.107.18.10/31 port 587
sudo ufw allow from 127.0.0.1 port 587 to 13.107.19.10/31 port 587
sudo ufw allow from 127.0.0.1 port 587 to 13.107.128.0/22 port 587
sudo ufw allow from 127.0.0.1 port 587 to 23.103.160.0/20 port 587
sudo ufw allow from 127.0.0.1 port 587 to 23.103.224.0/19 port 587
sudo ufw allow from 127.0.0.1 port 587 to 40.96.0.0/13 port 587