exim4-daemon-heavy: LDAP query fails and hangs randomly

[Jordan]

Package: exim4-daemon-heavy
Version: 4.69-5ubuntu2
Severity: normal



-- Package-specific info:
Exim version 4.69 #1 built 10-Oct-2008 14:40:33
Copyright (c) University of Cambridge 2006
Berkeley DB: Berkeley DB 4.6.21: (September 27, 2007)
Support for: crypteq iconv() IPv6 PAM Perl Expand_dlfunc GnuTLS move_frozen_messages Content_Scanning Old_Demime
Lookups: lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmnz dnsdb dsearch ldap ldapdn ldapm mysql nis nis0 passwd pgsql sqlite
Authenticators: cram_md5 cyrus_sasl dovecot plaintext spa
Routers: accept dnslookup ipliteral iplookup manualroute queryprogram redirect
Transports: appendfile/maildir/mailstore/mbx autoreply lmtp pipe smtp
Fixed never_users: 0
Size of off_t: 8
Configuration file is /etc/exim4/exim4.conf.ldap
ldap_default_servers = "192.168.21.250"
LDAP_AD_BINDDN = "ldapbind at BCRICWH.LAN"
LDAP_AD_PASS = "9hb67986bf192384vb6g108274g13453124"
LDAP_AD_BASE_DN = ${quote_ldap:DC=BCRICWH,DC=LAN}

LDAP_AD_MAIL_RCPT = \
  user=LDAP_AD_BINDDN \
  pass=LDAP_AD_PASS \
  ldap:///LDAP_AD_BASE_DN\
  ?mail?sub?\
  (&\
    (|\
      (objectClass=user)\
      (objectClass=publicFolder)\
      (objectClass=group)\
    )\
    (proxyAddresses=SMTP:${quote_ldap:${local_part}@${domain}})\
  )

begin routers

check_backend:
 driver = redirect
 domains = +relay_to_domains
 allow_fail
 allow_defer
 forbid_file
 forbid_pipe
 data = ${lookup ldap {LDAP_AD_MAIL_RCPT} {${local_part}@${domain}}{:fail:
 User unknown}}

-- System Information:
Debian Release: lenny/sid
  APT prefers intrepid-updates
  APT policy: (500, 'intrepid-updates'), (500, 'intrepid-security'), (500, 'intrepid')
Architecture: i386 (i686)

Kernel: Linux 2.6.27-11-generic (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages exim4-daemon-heavy depends on:
ii  debconf [debconf- 1.5.23ubuntu2          Debian configuration management sy
ii  exim4-base        4.69-5ubuntu2          support files for all Exim MTA (v4
ii  libc6             2.8~20080505-0ubuntu9  GNU C Library: Shared libraries
ii  libdb4.6          4.6.21-10              Berkeley v4.6 Database Libraries [
ii  libgnutls26       2.4.1-1ubuntu0.2       the GNU TLS library - runtime libr
ii  libldap-2.4-2     2.4.11-0ubuntu6.1      OpenLDAP libraries
ii  libmysqlclient15o 5.0.67-0ubuntu6        MySQL database client library
ii  libpam0g          1.0.1-4ubuntu5.5       Pluggable Authentication Modules l
ii  libpcre3          7.6-2.1ubuntu1         Perl 5 Compatible Regular Expressi
ii  libperl5.10       5.10.0-11.1ubuntu2.2   Shared Perl library
ii  libpq5            8.3.7-0ubuntu8.10.1    PostgreSQL C client library
ii  libsasl2-2        2.1.22.dfsg1-21ubuntu2 Cyrus SASL - authentication abstra
ii  libsqlite3-0      3.5.9-3ubuntu1         SQLite 3 shared library

exim4-daemon-heavy recommends no packages.

-- debconf information:
  exim4-daemon-heavy/drec: