[Dovecot] Cant Receive Email from dovecot pop

[Linux Advocate]

Guys, i am new to dovecot. I am not able to retrieve email from an account that i just setup.


A. This is the output from /var/log.maillog. 
...........................................................

Feb 21 18:01:31 fwgw dovecot: auth(default): client in: AUTH    1       PLAIN   service=POP3    lip=::ffff:60.54.174.146        rip=::ffff:60.50.250.8        resp=<hidden>
Feb 21 18:01:31 fwgw dovecot: auth-worker(default): mysql: Connected to localhost (postfix)
Feb 21 18:01:31 fwgw dovecot: auth-worker(default): sql(fizan,::ffff:60.50.250.8): query: SELECT password FROM mailbox WHERE username = 'fizan'
Feb 21 18:01:31 fwgw dovecot: auth-worker(default): sql(fizan,::ffff:60.50.250.8): unknown user
Feb 21 18:01:32 fwgw dovecot: auth(default): new auth connection: pid=3567
Feb 21 18:01:32 fwgw dovecot: auth(default): client out: FAIL   1       user=fizan
Feb 21 18:01:32 fwgw dovecot: pop3-login: Aborted login: user=<fizan>, method=PLAIN, rip=::ffff:60.50.250.8, lip=::ffff:60.54.174.146



B. This is my /etc/dovecont.conf
............................................

## Dovecot configuration file

protocols = imap pop3

auth default {
  userdb sql {
    args = /etc/dovecot-mysql.conf
  }
  passdb sql {
    args = /etc/dovecot-mysql.conf
  }
}

first_valid_uid = 89
default_mail_env = maildir:/home/vmail/%d/%n

# Debugging options

auth_verbose = yes
auth_debug = yes


C. Error Message from the Email Client - Kmail
................................................................

I get a messge saying;

"Could not Login to mail.mesara.biz. 
The password may be wrong. 
The server said authentication failed"

D. Other info
.............

I am running on a Centos 5.2 box , with postfix 2.3,  dovecot 1.0.7, mysql 5.0.45


Pls help. Much appreciated.

Regards.
gomez