In Exchange 2003, is there a way to make POP3 email not to use Outgoing server ( SMTP ) authentication? I mean, when I configure Outlook using POP3 email, I have to choose an email account and then go to More Settings----Outgoing server----select the check box My outgoing server (SMTP ) requires authentication. I will not be able to send email if I don't choose outgoing server authentication. In Outlook, the default setting does not include outgoing server anthentication when using POP3 email.