Hello, I've finished to implement my mail server following the howto "Virtual Users And Domains With Postfix, Courier And MySQL (+ SMTP-AUTH, Quota, SpamAssassin, ClamAV)". All things are running very well. But now, I can retrieve my email via a POP3 client like Outlook Express. Anytime, I must enter the password. Can you please help me to solve this problem. Thank you.