Hi there! The setup in question is the root server in my signature. The problem is: I have created a mailbox for a friend to use via IMAP. He uses a Mac, I use a PC (WinVista). When I log in, I can pick up the mail, no problem. When he tries, he gets an error saying that the authentication failed. The mail.log on the server agrees, by stating: Code: Jan 25 12:38:39 server1 imapd: LOGIN FAILED, user=web30_info, ip=[::ffff:188.8.131.52] I have seen screenshots of all the settings... He uses the right port, the right server and the right login. What could be causing the error? Any ideas anyone?