How to set up Huawei mobile phone so that other people's short messages can't be sent out?

You can click on the harassment interception at the mobile phone management home to set it. You can add a specific number to the blacklist and turn on the blacklist switch of the blocked number in the interception rule. If you need to intercept all the phone calls and messages of people who are not recorded in the address book, you can turn on the intercept stranger switch.