Entourage has a feature called "CC All", which allows the user to quickly send a message to multiple recipients by sending a carbon copy to everyone in the selected group.
The result is a streamlined "reply to all" process that helps you communicate more efficiently. Of course, you'll need a few things to get started. In addition to Microsoft Entourage, you'll also need Akua Sweets 1.3.8 or higher installed on your system. Assuming you meet these requirements, CC All (Entourage) is a great way to make your email workflow more manageable and effective.