In the Account Settings window, click the E-mail tab.
Select the account you wish to apply changes to.
Click the Change... button (above the list of mail accounts).
Verify that the Outgoing mail server (SMTP) field contains smtp.ucsd.edu
Click the More Settings... button.
In the Internet E-mail Settings window, click the Outgoing Server tab.
Verify that the the box next to My outgoing server (SMTP) requires authentication is checked.
Click on the Log on using button to select it.
Enter your UCSD network username in the User Name field.
Enter your password in the Password field, and click on the box next to Remember password to select it
Do not ticket the SPA box