Dovecot+lmtp+LDAP

Configurazione di Dovecot come backend di posta alimentato solo da lmtp con utenti solo LDAP

# 2.0.19: /etc/dovecot/dovecot.conf
# OS: Linux 3.2.0-53-generic x86_64 Ubuntu 12.04.3 LTS reiserfs
auth_username_format = %Lu
disable_plaintext_auth = no
listen = *
log_timestamp = "%Y-%m-%d %H:%M:%S "
mail_location = maildir:/mail/mdir/%Ln
mail_max_userip_connections = 40
mail_privileged_group = mail
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 = /etc/dovecot/dovecot-ldap-passdb.conf
  driver = ldap
}
postmaster_address = postmaster@ic-cittastudi.it
protocols = imap lmtp
service anvil {
  client_limit = 1803
}
service auth {
  unix_listener auth-master {
    group = Debian-exim
    mode = 0666
    user = Debian-exim
  }
  user = root
}
service imap-login {
  process_limit = 600
}
service imap {
  process_limit = 1024
}
service lmtp {
  inet_listener lmtp {
    address = 127.0.0.1 ::1
    port = 24
  }
}
service managesieve-login {
  process_limit = 600
}
service managesieve {
  process_limit = 1024
}
service pop3-login {
  process_limit = 600
}
service pop3 {
  process_limit = 1024
}
ssl_cert = </etc/dovecot/dovecot.pem
ssl_key = </etc/dovecot/dovecot.pem
userdb {
  args = /etc/dovecot/dovecot-ldap-userdb.conf
  driver = ldap
}
protocol imap {
  imap_client_workarounds = 
}
protocol pop3 {
  pop3_uidl_format = %08Xu%08Xv
}
protocol lda {
  info_log_path = /tmp/lda_info.log
  log_path = /tmp/lda_err.log
  postmaster_address = maildelivery@ic-cittastudi.it
}
protocol lmtp {
  info_log_path = /tmp/lmtp_info.log
  log_path = /tmp/lmtp_err.log
}