El lun, 15-10-2007 a las 10:41 -0400, Charles Marcus escribió:

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On 10/15/2007, Maykel Moya (moya@infomed.sld.cu) wrote:

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I'm using deliver (1.0.5) with Postfix (2.1.6).

<snip>

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Any hint?

May not be the cause - but postfix 2.1.6 is - well - *ancient*...

I'd make upgrading a priority, even it didn't fix the problem...

I'd upgraded postfix to 2.4.5. Although not sure if it helps I also raised auth_worker_max_count. Up to this moment I haven't had experience the error again.

Well, there it's, again. Postfix, by defaults, don't do more than 100 concurrent deliveries with the same transport, local in my case.

I raised up auth_worker_max_count to 128, to accomodate 100 potential concurrent deliveries plus some pop3/imaps clients.

The problem appears with certain frequency. There is no other info in the log besides the error notification.

FWIW: I have auth_debug enabled. In normal operation I can see the LDAP queries: dovecot: Oct 16 09:46:14 Info: auth(default): ldap(foo,x.y.z.w): pass search: base=ou=users,dc=foo,dc=org scope=subtree filter=(uid=foo) fields=uid,userPassword,sldMailbox

nevertheless, next to net_connect errors, the ldap related line is something like

dovecot: Oct 16 09:46:14 Info: auth(default): ldap(foo,x.y,z,w): unknown user

in both cases, the user don't exist in the directory.

Don't know is this could be something with the same nature of[1].

My config

base_dir = /var/run/dovecot-ldap

# IO optimizations fsync_disable = yes dotlock_use_excl = yes maildir_copy_with_hardlinks = yes maildir_stat_dirs = no maildir_copy_preserve_filename = yes

protocol lda { postmaster_address = bar@foor.org auth_socket_path = /var/run/dovecot/auth-master mail_plugins = quota

# http://wiki.dovecot.org/MailLocation/LocalDisk fsync_disable = yes }

auth default { mechanisms = plain

auth_worker_max_count = 128

socket listen { master { path = /var/run/dovecot/auth-master mode = 0660 user = dovecot group = nusers } }

passdb ldap { args = /etc/dovecot/dovecot-ldap.conf } passdb pam { }

userdb ldap { args = /etc/dovecot/dovecot-ldap.conf }

userdb prefetch { }

userdb passwd { }

user = root }

Regards, maykel

[1] http://www.dovecot.org/list/dovecot/2007-October/026069.html