From a Home screen, navigate: Apps > Settings > Accounts & sync.
Tap Add (located in the upper-right).
Enter the appropriate info (e.g., Email address, Password, etc.) then tap NEXT.
Depending upon the email account type, the available options may vary.
If presented, tap the appropriate account type (e.g., POP3, IMAP, etc.).
If not presented, account setup has completed. Skip to step 7.
From the appropriate info (e.g., SMTP server, Port, etc.) then tap NEXT.
If you're not sure what your server info is, here are some common personal email server addresses. Contact your email provider if additional assistance is needed or your server info isn't listed.
Enter an account name (optional) then tap FINISH.
If presented, ensure a name is entered for outgoing messages.