TXT: v=spf1 ip4:121.9.201.128/27 - all

Excuse me that contains the IP is how many? By how much to how much
There are many IP

CodePudding user response:

121.9.201.128-121.9.201.160
32 IP

CodePudding user response:

This is a basic TCPIP network protocol, really trouble, can download a calculator network address