[Dovecot] Dovecot Authentication Problem Can't Make it Work

[Howell Repaja]

Hi All,

I am struggling for 2 weeks solving authentication problem in dovecot.

logs from /etc/mail/maillog
Oct 15 18:00:35 localhost dovecot: auth: Debug: Loading modules from
directory: /usr/lib64/dovecot/auth
Oct 15 18:00:35 localhost dovecot: auth: Debug: Module loaded:
/usr/lib64/dovecot/auth/libauthdb_ldap.so
Oct 15 18:00:35 localhost dovecot: auth: Debug: Module loaded:
/usr/lib64/dovecot/auth/libdriver_mysql.so
Oct 15 18:00:35 localhost dovecot: auth: Debug: Module loaded:
/usr/lib64/dovecot/auth/libdriver_pgsql.so
Oct 15 18:00:35 localhost dovecot: auth: Debug: Module loaded:
/usr/lib64/dovecot/auth/libdriver_sqlite.so
Oct 15 18:00:35 localhost dovecot: auth: Debug: Module loaded:
/usr/lib64/dovecot/auth/libmech_gssapi.so
Oct 15 18:00:35 localhost dovecot: auth: Debug: auth client connected
(pid=26723)
Oct 15 18:00:35 localhost dovecot: auth: Debug: client in:
AUTH#0111#011PLAIN#011service=pop3#011lip=10.0.0.123#011rip=88.22.197.66#011lport=110#011rport=2358#011resp=AGhvd2VsbEB0b3VyZm9yeW91LmluZm8AanVtb25n
Oct 15 18:00:35 localhost dovecot: auth: Debug: Loading modules from
directory: /usr/lib64/dovecot/auth
Oct 15 18:00:35 localhost dovecot: auth: Debug: Module loaded:
/usr/lib64/dovecot/auth/libauthdb_ldap.so
Oct 15 18:00:35 localhost dovecot: auth: Debug: Module loaded:
/usr/lib64/dovecot/auth/libdriver_mysql.so
Oct 15 18:00:35 localhost dovecot: auth: Debug: Module loaded:
/usr/lib64/dovecot/auth/libdriver_pgsql.so
Oct 15 18:00:35 localhost dovecot: auth: Debug: Module loaded:
/usr/lib64/dovecot/auth/libdriver_sqlite.so
Oct 15 18:00:35 localhost dovecot: auth: Debug: Module loaded:
/usr/lib64/dovecot/auth/libmech_gssapi.so
Oct 15 18:00:35 localhost dovecot: auth: Debug:
pam(howell at mydomain.info<howell at tourforyou.info>,88.22.33.66):
lookup service=dovecot
Oct 15 18:00:35 localhost dovecot: auth: Debug:
pam(howell at mydomain.info<howell at tourforyou.info>,88.22.197.66):
#1/1 style=1 msg=Password:
Oct 15 18:00:37 localhost dovecot: auth:
pam(howell at mydomain.info<howell at tourforyou.info>,88.22.197.66):
unknown user
Oct 15 18:00:39 localhost dovecot: auth: Debug: client out:
FAIL#0111#011user=howell at mydomain.info#011reason=Password<http://howell@tourforyou.info/#011reason=Password>
:
Oct 15 18:00:39 localhost dovecot: pop3-login: Disconnected (auth failed, 1
attempts): user=<howell at mydomain.info <howell at tourforyou.info>>,
method=PLAIN, rip=88.22.197.66, lip=10.0.0.123

Oct 15 18:01:05 localhost sendmail[26722]: q9FA15LB026722: [88.22.197.66]
did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA


# 2.0.9: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-279.el6.x86_64 x86_64 CentOS release 6.3 (Final) ext4
auth_debug_passwords = yes
auth_mechanisms = plain login
auth_socket_path = /var/run/dovecot/auth-userdb
disable_plaintext_auth = no
last_valid_gid = 10
last_valid_uid = 650
listen = *
login_greeting = Dovecot ready for you.
mail_debug = yes
mail_location = mbox:/var/spool/mail/%d/%1n/%n:INDEX=/var/indexes/%d/%1n/%n
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character
vacation subaddress comparator-i;ascii-numeric relational regex imap4flags
copy include variables body enotify environment mailbox date
passdb {
  args = setcred=yes failure_show_msg=yes cache_key=%u dovecot
  driver = pam
}
plugin {
  sieve = ~/.dovecot.sieve
  sieve_dir = ~/sieve
}
service imap-login {
  inet_listener imap {
    port = 143
  }
}
service pop3-login {
  inet_listener pop3 {
    port = 110
  }
}
ssl_cert = </etc/pki/dovecot/certs/dovecot.pem
ssl_key = </etc/pki/dovecot/private/dovecot.pem
userdb {
  driver = passwd
}
protocol pop3 {
  pop3_uidl_format = %08Xu%08Xv
}