A contact group, also called a mailing list, is a collection of contacts that simplifies the process of sending e‑mail to groups of people. By addressing a message to a contact group, you save time by not having to add each recipient's address to the message. You can send the message to everyone in the contact group at once.
When using contact groups, keep in mind that they don't hide the e‑mail addresses of the recipients. When you send a message to a contact group, all the recipients can see the names and e‑mail addresses of the other recipients.
Open Windows Contacts by clicking the Start button , and then clicking your user name. Type contacts in the address bar, and then press Enter.
On the toolbar, click New Contact Group, type a name in the Group Name box, and then fill in the boxes on the Contact Group tab and the Contact Group Details tab. You don't have to fill in all the boxes; just type as much information as you want about the new contact group you are creating.
Add contacts to the contact group in any of the following ways:
To add individual contacts to the group from your existing contacts, click Add to Contact Group.
To create new contacts and add them to the contact group, click Create New Contact.
To add new people to the contact group without also adding them to your individual contacts, type the appropriate information in the Contact Name and E‑Mail boxes, and then click Create for Group Only.
When you've finished creating your contact group, click OK.