How to Create Mail Groups in Microsoft Outlook 2007
One of the more powerful and convenient features of Microsoft Outlook 2007 is that you can create groups of contacts for your email, called distribution lists. Once you set these up, you can select an entire group to receive an email message with one click of your mouse. This is especially helpful if you often have to send email to the same group of people, eliminating the need for selecting recipients one-by-one.
Open Outlook. Click on the "File" menu, and select "New."
Click on "Distribution List," and a text box appears. Type in a name of your choosing for the list you're creating. For example, if you often send employee hours updates to all the employees in the payroll department, you might name your distribution list "Payroll Department."
Click on the "Select Members" icon on the Members tab. If you have more than one address book, click on the one that contains the email addresses you wish to add to your distribution list.
Select the members you wish to add by double-clicking on each member. When you're done adding members, click on "OK." Outlook saves your distribution list in your Contacts folder with the name you gave it in Step 2. Click on this as you would any other contact when sending an email.