A look at the Mail Preferences
Add a new outgoing server to an email account
Automatically CC or BCC yourself when sending an email
Change the default font used for sending emails.
Change the default message format, Plain or HTML
Change the default RSS reader program
Change the outgoing server settings for an email account
Check for RSS updates
Choose which email account is used as your default. When you create a new email this is the account used
A look at your composing options - change the message format, spelling options and more
Disable the junk mail filter in Mail
Edit or change advanced email account settings and options
Setup signatures to appear in email messages
Setup how you view the headers for emails you receive
A look at the junk mail settings - disable the filter, or change how junk filtering works
Add additional email accounts to Mail
Change the sound that plays when you receive a new email
Change how frequently Mail checks for new emails
Decide whether you want the spell check to run as you type, when you click "Send", or never
Change the Viewing options, choose how much header detail to view, online buddy status, unread messages in bold and more