If you have several e-mail or newsgroup accounts, you can work with all of them within one window. You can also create multiple users, or identities, for the same computer. Each identity has unique e-mail folders and an individual Address Book. Multiple identities make it easy for you to keep work e-mail separate from personal e-mail, and also to keep individual users' e-mail separated.

Using the message list and preview pane, you can view a list of messages and read individual messages at the same time. The Folders list contains e-mail folders, news servers, and newsgroups, and you can easily switch among them. You can also create new folders to organize and sort messages, and then set up message rules so that incoming e-mail that meets your criteria automatically goes to a specific folder. You can also create your own views to customize the way you look at your e-mail.

You can save names and addresses in the Address Book automatically by simply replying to a message. You can also import names and addresses from other programs, type them into the Address Book, add them from e-mail messages you receive, or add them from a search of popular Internet directory services (white pages).

You can insert essential information into outgoing messages as part of your personal signature, and you can create multiple signatures to use for different purposes. You can also include a business card with more detailed information. To make your messages look more attractive, you can add stationery patterns and backgrounds, and you can change the color and style of the text.

You can digitally sign and encrypt messages by using digital IDs. Digitally signing your message assures recipients that the message is really from you. Encryption ensures that only intended recipients can read the message.