Jan 25 14:32:45 dev-al-mail02 dovecot: auth: Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth
Jan 25 14:32:45 dev-al-mail02 dovecot: auth: Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth
Jan 25 14:32:45 dev-al-mail02 dovecot: auth: Debug: Module loaded: /usr/lib/dovecot/modules/auth/libauthdb_ldap.so
Jan 25 14:32:45 dev-al-mail02 dovecot: auth: Debug: Read auth token secret from /var/run/dovecot/auth-token-secret.dat
Jan 25 14:32:45 dev-al-mail02 slapd[9260]: conn=1036 fd=21 ACCEPT from IP=[::1]:43750 (IP=[::]:389)
Jan 25 14:32:45 dev-al-mail02 slapd[9260]: conn=1036 op=0 EXT oid=1.3.6.1.4.1.1466.20037
Jan 25 14:32:45 dev-al-mail02 slapd[9260]: conn=1036 op=0 STARTTLS
Jan 25 14:32:45 dev-al-mail02 slapd[9260]: conn=1036 op=0 RESULT oid= err=0 text=
Jan 25 14:32:45 dev-al-mail02 slapd[9260]: conn=1036 fd=21 TLS established tls_ssf=128 ssf=128
Jan 25 14:32:45 dev-al-mail02 dovecot: auth: Debug: auth client connected (pid=10715)
Jan 25 14:32:45 dev-al-mail02 slapd[9260]: conn=1036 op=1 BIND dn="cn=admin,dc=domain,dc=com" method=128
Jan 25 14:32:45 dev-al-mail02 slapd[9260]: conn=1036 op=1 BIND dn="cn=admin,dc=domain,dc=com" mech=SIMPLE ssf=0
Jan 25 14:32:45 dev-al-mail02 slapd[9260]: conn=1036 op=1 RESULT tag=97 err=0 text=
Jan 25 14:32:45 dev-al-mail02 dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=imap#011secured#011session=MJgx2J5j8rF/AAAB#011lip=127.0.0.1#011rip=127.0.0.1#011lport=143#011rport=45554#011resp=AGFsb3VraW5hcwxOs3RoaW5nMDEh (previous base64 data may contain sensitive data)
Jan 25 14:32:45 dev-al-mail02 slapd[9260]: conn=1036 op=2 BIND anonymous mech=implicit ssf=0
Jan 25 14:32:45 dev-al-mail02 slapd[9260]: conn=1036 op=2 BIND dn="cn=anthony,ou=People,dc=nis,dc=domain,dc=com" method=128
Jan 25 14:32:45 dev-al-mail02 slapd[9260]: conn=1036 op=2 RESULT tag=97 err=49 text=
Jan 25 14:32:45 dev-al-mail02 dovecot: auth: ldap(anthony,127.0.0.1,<MJgm2J5j8rx/AAAB>): invalid credentials (given password: RedactedPassword)
Jan 25 14:32:47 dev-al-mail02 dovecot: auth: Debug: client passdb out: FAIL#0111#011user=aloukinas
Jan 25 14:32:47 dev-al-mail02 dovecot: imap-login: Disconnected (auth failed, 1 attempts in 2 secs): user=<anthony>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured, session=<MJgm2J5j8rx/AAAB>


# 2.2.22 (fe789d2): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.13 (7b14904)
# OS: Linux 4.4.0-87-generic x86_64 Ubuntu 16.04.3 LTS ext4
auth_debug_passwords = yes
auth_mechanisms = plain login
disable_plaintext_auth = no
mail_location = maildir:/home/%u/Maildir
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 = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
protocols = " imap pop3"
ssl = no
userdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}


/etc/dovecot/dovecot-ldap.conf.ext

debug_level = 0
hosts = localhost
dn = cn=admin,dc=domain,dc=com
dnpass = RedactedPassword
tls = yes
auth_bind = yes
auth_bind_userdn = cn=%u,ou=People,dc=nis,dc=domain,dc=com
ldap_version = 3
base = ou=People, dc=nis, dc=domain, dc=com
scope = subtree
user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid
user_filter = (&(objectClass=posixAccount)(uid=%u))