[Dovecot] Client got empty email from dovecot

[Lori Seda]

Hi,

      I built a mail server with qmail + vpopmail + dovecot , the qmail and
vpopmail worked well, until the dovecot was installed.
     Client always get empty email, I have try some solutions from
google, neither of then can solve the problem.
     Here is the detailed information of logs, version, and output of
'dovecot -n', please help, thanks.

                                     Lori

*Log:*

May  9 14:16:23 mail dovecot: pop3-login: Login: user=<user1 at site1.com>,
method=PLAIN, rip=111.14.98.135, lip=10.247.108.189, mpid=23467,
session=<VCJGcZS/FQBvDmKH>
 May  9 14:16:25 mail dovecot: pop3(user1 at site1.com): Error: Cached message
size larger than expected (575 > 61)
May  9 14:16:25 mail dovecot: pop3(user1 at site1.com): Error: Maildir
filename has wrong S value, renamed the file from /home/vpopmail/domain_dir/
site1.com/sunl/Maildir/cur/1336544158.23459.mail.site1.com,S=575:2, to
/home/vpopmail/domain_dir/
site1.com/sunl/Maildir/cur/1336544158.23459.mail.site1.com,S=61:2,
 May  9 14:16:25 mail dovecot: pop3(user1 at site1.com): Error: Corrupted
index cache file /home/vpopmail/domain_dir/
site1.com/sunl/Maildir/dovecot.index.cache: Broken physical size for mail
UID 1
 May  9 14:16:25 mail dovecot: pop3(user1 at site1.com): Error: Cached message
size larger than expected (575 > 61)
May  9 14:16:25 mail dovecot: pop3(user1 at site1.com): Error: Corrupted index
cache file /home/vpopmail/domain_dir/
site1.com/sunl/Maildir/dovecot.index.cache: Broken physical size for mail
UID 1
 May  9 14:16:25 mail dovecot: pop3(user1 at site1.com): Error:
read(/home/vpopmail/domain_dir/
site1.com/sunl/Maildir/cur/1336544158.23459.mail.site1.com,S=575:2,)
failed: Input/output error (uid=1)
 May  9 14:16:25 mail dovecot: pop3(user1 at site1.com): Disconnected: Logged
out top=0/0, retr=1/78, del=0/1, size=63


*Version:*

[root]vpopmail# dovecot --version
*2.1.6*

dovecot -n:

[root]vpopmail# dovecot -n
# 2.1.6: /usr/local/etc/dovecot/dovecot.conf
# OS: Linux 2.6.18-164.el5 x86_64 Red Hat Enterprise Linux Server release
5.4 (Tikanga) ext3
auth_cache_size = 10 M
auth_default_realm = site1.com
auth_mechanisms = plain login cram-md5
auth_socket_path = /usr/local/var/run/dovecot/auth-userdb
default_internal_user = vpopmail
default_login_user = vpopmail
disable_plaintext_auth = no
first_valid_uid = 516
hostname = mail.site1.com
last_valid_uid = 516
listen = *
mail_access_groups = 516
mail_gid = 513
mail_location = maildir:/home/vpopmail/domain_dir/%d/%n/Maildir/
mail_privileged_group = 513
mail_uid = 516
namespace inbox {
  inbox = yes
  location =
  mailbox Drafts {
    special_use = \Drafts
  }
  mailbox Junk {
    special_use = \Junk
  }
  mailbox Sent {
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Trash {
    special_use = \Trash
  }
  prefix =
}
passdb {
  args = cache_key=%u webmail=127.0.0.1
  driver = vpopmail
}
postmaster_address = postmaster at site1.com
protocols = imap pop3
sendmail_path = /var/qmail/bin/sendmail
service auth-worker {
  user = $default_internal_user
}
service auth {
  unix_listener auth-userdb {
    group = vchkpw
    mode = 0666
    user = vpopmail
  }
  user = $default_internal_user
}
service imap-login {
  inet_listener imaps {
    ssl = yes
  }
}
service pop3-login {
  inet_listener pop3s {
    ssl = yes
  }
}
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_key = </etc/ssl/private/dovecot.pem
userdb {
  args = quota_template=quota_rule=*:backend=%q
  driver = vpopmail
}
protocol lda {
  mail_plugins =
}
protocol imap {
  mail_plugins =
}
protocol pop3 {
  mail_plugins =
}