IMAP authentication failure with dovecot

Hi,
I am trying to setup ISPConfig 2.2.32 on CentOS 5.3 32-bit. I
followed the how-to on howtoforge for CentOS 5.2[1]. The control panel
is working and the emails are being delivered to the mailbox. But, I
am unable to login via IMAP.
Here's the output from telnet

Here's the logs for dovecot

/etc/dovecot.conf

I have checked that the username and password exist and are correct.
I am not sure if dovecot should be authenticating using PAM or use
some files or mysql. Any pointers to the solve the issue will be
appreciated.


1. http://www.howtoforge.com/perfect-server-centos-5.2

 

Thank you till. I somehow missed that. It's working great now