Hello.
We are planning a migration from Sun One Messaging Server to
Dovecot+Postfix+Ldap. We are using Dovecot 1.2.11 with Sun One Directory
Server 5.2 ldap (we will migrate to Directory Server 6.3.1) soon. In our
University we have 65.000 students, 5.500 staff and 6.500 teachers.
Our main ldap realm is dc=us,dc=es (us means University of Seville,
Spain). We have two e-mail domains, @us.es (staff+teachers) and
@alum.us.es (students). We use Sun One Directory Server to load data to
our ldap from several sources (like Oracle databases, flat files, etc)
Our ldap tree is like this:
dc=us,dc=es
|
|----->ou=People,dc=us,dc=es // "special" users only used by apps
|
|
|----->o=us.es,dc=us,dc=es // ldap branch for staff+teachers
|
|
|----->o=alum.us.es,dc=us,dc=es // ldap branch for students
A user id is unique, so there is only a "john_doe" in the ldap tree
(I repeat, there is NOT uid=john_doe,o=us.es,dc=us,dc=es and
uid=john_doe,o=alum.us.es,dc=us,dc=es). Below you will find a copy of
the dovecot.conf and dovecot-ldap.conf.
Our operating system is Red Hat Enteprise Linux 5 x64.
These are our questions:
1) We are unable to make dbox work with quota, but we have no
problem with maildir. Quota is stored in a ldap attibute called "mailQuota"
2) A user can be in different branches in the same time: for
example, a teacher called pepito should be in the
uid=pepito,o=us.es,dc=us,dc=es branch but if that teacher is also a
student should have another ldap entry
uid=pepitosurname,o=us.es,dc=us,dc=es. Our identity management is the
piece of software that "promotes" a user in that case. How should we use
"mail_location" to addres this?
3) We are planning to use two raid5 of 8 SAS 15.000 rpm disks for
these mailboxes. We will use a "2.0, ajax-based webmail" like roundcube.
Most of our users will use webmail (imap based). How many iops should we
have in that enviroment? We would like to use dbox, but we are stuck in
maildir because 1)
4) Some users could have their mailboxes "disabled". We use the
following line: user_filter =
(&(objectClass=inetorgperson)(uid=%n)(mailUserStatus=active)) but it
does NOT work as expected. Any idea)
5) We are planning to use bacula to backup user mailboxes. Any
known problem with this (i will ask in the bacula mailing list anyway)
6) I have read carefully perfomance in dovecot wiki. Can I use
noatime in /etc/fstab safely with dovecot? Any perfomance hint apart
from we already have in our config files?
7) When we set vacation messages they work but we see this error in
the log: dovecot: deliver(jorgelp):
file_dotlock_create(~/.dovecot.lda-dupes) failed: No such file or directory
8) When a user log in she uses his username "mary" (without @us.es
or @alum.us.es) . Our dovecot search in all the ldap tree until it finds
that uid. But we would like to store in our mail_location /buzones/us.es
or /buzones/alum.us.es. How can we accomplish this? We should use the
"upper branch name" as part of the mail_location.
Thank you for your support (and for your patience).
Regards
Javier
<---- Config files ------>
dovecot.conf:
# 1.2.11: /etc/dovecot.conf
# OS: Linux 2.6.18-194.3.1.el5 i686 Red Hat Enterprise Linux Server
release 5.5 (Tikanga) ext3
base_dir: /var/run/dovecot/
protocols: pop3 imap imaps pop3s managesieve
listen(default): *, [::]
listen(imap): *, [::]
listen(pop3): *, [::]
listen(managesieve): *:2000
login_dir: /var/run/dovecot//login
login_executable(default): /usr/libexec/dovecot/imap-login
login_executable(imap): /usr/libexec/dovecot/imap-login
login_executable(pop3): /usr/libexec/dovecot/pop3-login
login_executable(managesieve): /usr/libexec/dovecot/managesieve-login
login_max_processes_count: 2000
max_mail_processes: 2000
verbose_proctitle: yes
mail_uid: prueba
mail_gid: prueba
mail_location: maildir:/buzones/us.es/%M/%n/
fsync_disable: yes
mail_executable(default): /usr/libexec/dovecot/rawlog
/usr/libexec/dovecot/imap
mail_executable(imap): /usr/libexec/dovecot/rawlog /usr/libexec/dovecot/imap
mail_executable(pop3): /usr/libexec/dovecot/pop3
mail_executable(managesieve): /usr/libexec/dovecot/managesieve
mail_plugins(default): quota imap_quota
mail_plugins(imap): quota imap_quota
mail_plugins(pop3): quota
mail_plugins(managesieve):
mail_plugin_dir(default): /usr/lib/dovecot/imap
mail_plugin_dir(imap): /usr/lib/dovecot/imap
mail_plugin_dir(pop3): /usr/lib/dovecot/pop3
mail_plugin_dir(managesieve): /usr/lib/dovecot/managesieve
pop3_enable_last(default): no
pop3_enable_last(imap): no
pop3_enable_last(pop3): yes
pop3_enable_last(managesieve): no
pop3_uidl_format(default): %08Xu%08Xv
pop3_uidl_format(imap): %08Xu%08Xv
pop3_uidl_format(pop3): %08Xv%08Xu
pop3_uidl_format(managesieve): %08Xu%08Xv
lda:
postmaster_address: javierdemig...@us.es
hostname: us.es
mail_plugins: sieve
log_path:
info_log_path:
syslog_facility: mail
fsync_disable: no
auth default_with_listener:
mechanisms: plain login
passdb:
driver: ldap
args: /etc/dovecot-ldap.conf
userdb:
driver: ldap
args: /etc/dovecot-ldap-userdb.conf
auth default:
mechanisms: plain login
passdb:
driver: ldap
args: /etc/dovecot-ldap.conf
userdb:
driver: ldap
args: /etc/dovecot-ldap.conf
socket:
type: listen
master:
path: /var/run/dovecot/auth-master
mode: 511
user: prueba
plugin:
quota: maildir:Cuota de usuario
quota_warning: storage=95%% /usr/local/bin/quota-warning.sh 95
quota_warning2: storage=80%% /usr/local/bin/quota-warning.sh 80
sieve: /buzones/us.es/%M/%n/dovecot.sieve
sieve_dir: /buzones/us.es/%M/%n/sieve/
dovecot-ldap.conf
hosts = ip_address:389
dn = uid=nuevobuzon,ou=People,dc=us,dc=es
dnpass = password
auth_bind = yes
auth_bind_userdn= uid=%n,o=us.es,dc=us,dc=es
ldap_version = 3
base = dc=us,dc=es
user_attrs = mailQuota=quota_rule=*:storage=%$B
user_filter = (&(objectClass=inetorgperson)(uid=%n)(mailUserStatus=active))
