Hey there! If you scroll down in that pop up box, you'll see the following details:
"You can use the following formats:
- Single IP addresses — Example: 192.168.0.1 and 2001:db8:1a34:56cf::
- A range of IP addresses — Example: 192.168.0.0/24 and 2001:db8:1a34:56cf::/64"
annd where we can find manual/tutorial about CIDR ??
by example we want BLOCK any message from:
becouse we get hundreds of emails SPAM from
then... really is correct:
NO!, this filter block messages from
then how we can BLOCK the range 134.73.2*.*
where is a tutorial please?