Assuming a non–Microsoft Exchange setup, the type of e-mail account that you'll create most regularly is a POP3 account. Here are instructions for creating both POP3 and IMAP e-mail account types:
From the Tools menu, select E-mail Accounts to display the E-mail Accounts dialog box.
In the E-mail section, select the Add new e-mail account option and click the Next button.
When the Internet E-mail Settings dialog box is displayed, ...