Track mail exchanges using the Conversation feature or optionally switch to a traditional message view.
Include attachments with your message.
Forward mail messages to one or more recipients.
Create your own folders to organize mail.
Create tags with which to organize your mail
Create filters to route incoming mail to designated folders.
Address Book
Create and manage multiple address books.
Import and export contact lists.
Calendar
Create and manage multiple calendars.
Create appointments, meetings, and events.
Import and export other calendar programs.
Tasks
Create multiple Tasks lists.
Create to-do tasks.
Add attachments to you task.
Manage a task, set the priority and track the progress.
Preferences
Manage how your mailbox works for Mail, Address Book, and Calendar.
Configure your account settings including the email address that appears in the From field and whether to automatically include a signature in your email messages.
Configure your email signatures.
Create mail filters.
View shortcut key combinations available for quick navigation within your mailbox.
In addition, you can search for email messages, and personal contacts, calendars, and task lists from any view.