please help

[chander chouhan]

i am getting following error when i am trying to download the mail from 
ldap+postfix+cyrusimapd server

on client side i am getting

pass command does not succeed
Mail server responded (AUTH) invalid login

in the logs it has following messages

/var/log/maillog

  accepted connection
May 26 19:29:13 bono pop3[10810]: executed
May 26 19:29:16 bono pop3[5245]: badlogin: 
bono.hostireland.com[220.220.220.223] plaintext gyan SASL(-13): 
authentication failure: checkpass failed
May 26 19:29:26 bono pop3[5245]: badlogin: 
bono.hostireland.com[220.220.220.223] plaintext gyan SASL(-13): 
authentication failure: checkpass failed
May 26 19:30:52 bono master[5214]: process 5245 exited, status 0
[root at bono root]# tail -10 /var/log/maillog
May 26 19:28:46 bono ctl_cyrusdb[10807]: archiving database file: 
/var/lib/imap/mailboxes.db
May 26 19:28:46 bono ctl_cyrusdb[10807]: archiving log file: 
/var/lib/imap/db/log.0000000001
May 26 19:28:46 bono ctl_cyrusdb[10807]: done checkpointing cyrus databases
May 26 19:28:46 bono master[5214]: process 10807 exited, status 0
May 26 19:29:13 bono master[10810]: about to exec /usr/lib/cyrus-imapd/pop3d
May 26 19:29:13 bono pop3[5245]: accepted connection
May 26 19:29:13 bono pop3[10810]: executed
May 26 19:29:16 bono pop3[5245]: badlogin: 
bono.hostireland.com[220.220.220.223] plaintext gyan SASL(-13): 
authentication failure: checkpass failed
May 26 19:29:26 bono pop3[5245]: badlogin: 
bono.hostireland.com[220.220.220.223] plaintext gyan SASL(-13): 
authentication failure: checkpass failed
May 26 19:30:52 bono master[5214]: process 5245 exited, status 0
[root at bono root]# tail -15 /var/log/maillog
May 26 19:28:15 bono postfix/smtp[10801]: 462607F4246: 
to=<root at bono.hostireland.com>, orig_to=<root>, relay=none, delay=24883, 
status=deferred (connect to bono.hostireland.com[220.220.220.223]: 
Connection refused)
May 26 19:28:46 bono master[10807]: about to exec 
/usr/lib/cyrus-imapd/ctl_cyrusdb
May 26 19:28:46 bono ctl_cyrusdb[10807]: checkpointing cyrus databases
May 26 19:28:46 bono ctl_cyrusdb[10807]: archiving database file: 
/var/lib/imap/annotations.db
May 26 19:28:46 bono ctl_cyrusdb[10807]: archiving log file: 
/var/lib/imap/db/log.0000000001
May 26 19:28:46 bono ctl_cyrusdb[10807]: archiving database file: 
/var/lib/imap/mailboxes.db
May 26 19:28:46 bono ctl_cyrusdb[10807]: archiving log file: 
/var/lib/imap/db/log.0000000001
May 26 19:28:46 bono ctl_cyrusdb[10807]: done checkpointing cyrus databases
May 26 19:28:46 bono master[5214]: process 10807 exited, status 0
May 26 19:29:13 bono master[10810]: about to exec /usr/lib/cyrus-imapd/pop3d
May 26 19:29:13 bono pop3[5245]: accepted connection
May 26 19:29:13 bono pop3[10810]: executed
May 26 19:29:16 bono pop3[5245]: badlogin: 
bono.hostireland.com[220.220.220.223] plaintext gyan SASL(-13): 
authentication failure: checkpass failed
May 26 19:29:26 bono pop3[5245]: badlogin: 
bono.hostireland.com[220.220.220.223] plaintext gyan SASL(-13): 
authentication failure: checkpass failed
May 26 19:30:52 bono master[5214]: process 5245 exited, status 0


what could be the resaon, i am readlly tense.

regards

chander