Click on E-mail Accounts…
Make sure View or change existing e-mail accounts
is selected then click on the Next button…
Highlight your IUL mail account (usually
mail.iul.net) and then click on the Change button...
Verify that the username field contains your full
email address including the @iul.net part (ie. tuser@iul.net) and then click on
the More settings button…
Click on the Outgoing Server tab and verify
that My outgoing server (SMTP) requires authentication is checkmarked and
that Use same settings as my incoming mail server is selected…
Click on the Advanced tab and make sure that
the Outgoing server (SMTP) port is set to 587, then click on the
OK button…
Fincally, click on the Finish button.