It is not always immediately obvious how to send an email to a Distribution Group for the first time. The below explains how to do so, using the example of sending an email to the All Staff Distribution group.
1) Create a new blank email in the normal way.
2) Click on the TO: button to open up the Address book.
3) Click on the >> icon to open up the different directories.
4) Click on ALL DISTRIBUTION LISTS and find the email group you wish to send to.
5) Once you find the group you wish to send to, click on the + icon next to the email group. Then click SAVE.
6) The email Distribution group will now be added to the TO: line of your new email and you can proceed as normal.
From now on, subsequent re-uses of this email group can be accessed by just typing a few characters of its name into the TO: field.