How can I hide other people email addresses when sending a group email?

I sometiems send one email to a group of other emails and wondered if there is a way that I can hide the group members email address from teh other group members for security purposes? By the way I use Hotmail

Thank you

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).