A group email allows you to type an email once and send it to multiple people. A good use for a group might be coworkers, members of a book club, or family members.
Today, I’ll show you how to do it using the popular Outlook online in a browser. If your email address ends in Outlook.com, Hotmail.com, MSN.com, or LiveMail.com and you access it by opening a web browser, these instructions will work for you.
First, you’ll need to go online to your inbox, which should look like this:

Click People icon in the left pane.

When People opens, click the drop-down arrow next to New contact and choose New contact list.

The New contact list window will open. Start by naming the list.

You can also add a description of the list.

Start typing in the Add email addresses window to see a list of your contacts.

Just click on a contact to add it to the list.

Or type in a new address and click Add.

When you’ve added all the names, just click Create.

When you create a new email, click the To: and look for Book Club in your contacts or just start typing Book Club.

The message will be sent to every member of your group.