[Dovecot] Dovecot LDA LDAP lookups on samba4 server ends very often in timeouts

Christian Wiese christian.wiese at securepoint.de
Wed Feb 20 16:52:41 EET 2013 

Hi Marco,

try to check if LDAP REFERRALS are enabled.

I had a similar issue some time ago when trying to authenticate against
an AD, which didn't worked (long timeouts) as long as I switched off
REFERRALS in the systems ldap.conf. (more info you might get by 'man
ldap.conf')

Cheers,
Chris


Am Wed, 20 Feb 2013 13:25:39 +0100
schrieb marco at carcano.ch:

> 
> I hope that someone will be so kind to help me into solving this
> really strange thing (don't know if it is a bug or not)
> 
> I have a samba4 server and want to use postfix+dovecot - dovecot 
> version is 2.0.11
> 
> as for the postfix side everything is OK (all the LDAP lookups works 
> without any error, tested also manually with postmap -q)
> the real pain is with dovecot deliver:
> 
> it seems that sometimes lda tries to lookup to the LDPA (samba 4) 
> server, got a reply, an then report(after 2 minutes) a lookup timeout 
> error
> 
> the really strange thing is that (very seldom) lda works, but most of 
> the times I got the timeout error.
> 
> The strange thing is that if I use ldapsearch I never got timeout 
> neither late replies, and even postfix performs its  lookups without
> any issue
> it seems something related to lda itself (I do not know if I have a 
> wrong configuration, but I think this is not a configuration issue,
> otherwise it should not work at all)
> 
> here are the information logged when it does not work - after this
> log you will find the one when I got the failure (if needed I can
> provide a .pcap file too)
> 
> (trailing and leading spaces of AT charcater has been added by me)
> 
> ############################## FAULTY DELIVER LOG 
> #############################################
> 
> Feb 20 12:20:50 sng02 postfix/smtpd[8928]: connect from 
> localhost[127.0.0.1]
> Feb 20 12:21:14 sng02 postfix/smtpd[8928]: A38D4407F5: 
> client=localhost[127.0.0.1]
> Feb 20 12:21:20 sng02 postfix/cleanup[8891]: A38D4407F5: warning: 
> header Subject: prova from localhost[127.0.0.1]; from=<marco @ 
> senderdomain.tld> to=<mac @ mydomain.com> proto=SMTP 
> helo=<senderdomain.tld>
> Feb 20 12:21:20 sng02 postfix/cleanup[8891]: A38D4407F5: 
> message-id=<20130220112114.A38D4407F5 @ srv01.mydomain.local>
> Feb 20 12:21:20 sng02 postfix/qmgr[8889]: A38D4407F5: from=<marco @ 
> senderdomain.tld>, size=371, nrcpt=1 (queue active)
> Feb 20 12:21:20 sng02 dovecot: lda: Debug: Loading modules from 
> directory: /usr/lib64/dovecot
> Feb 20 12:21:20 sng02 dovecot: lda: Debug: Module loaded: 
> /usr/lib64/dovecot/lib10_quota_plugin.so
> Feb 20 12:21:20 sng02 dovecot: lda: Debug: Module loaded: 
> /usr/lib64/dovecot/lib20_expire_plugin.so
> Feb 20 12:21:20 sng02 dovecot: lda: Debug: Module loaded: 
> /usr/lib64/dovecot/lib90_sieve_plugin.so
> Feb 20 12:21:20 sng02 dovecot: auth: Debug: Loading modules from 
> directory: /usr/lib64/dovecot/auth
> Feb 20 12:21:20 sng02 dovecot: auth: Debug: Module loaded: 
> /usr/lib64/dovecot/auth/libauthdb_ldap.so
> Feb 20 12:21:20 sng02 dovecot: auth: Debug: Module loaded: 
> /usr/lib64/dovecot/auth/libdriver_mysql.so
> Feb 20 12:21:20 sng02 dovecot: auth: Debug: Module loaded: 
> /usr/lib64/dovecot/auth/libdriver_pgsql.so
> Feb 20 12:21:20 sng02 dovecot: auth: Debug: Module loaded: 
> /usr/lib64/dovecot/auth/libdriver_sqlite.so
> Feb 20 12:21:20 sng02 dovecot: auth: Debug: Module loaded: 
> /usr/lib64/dovecot/auth/libmech_gssapi.so
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_bind
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_simple_bind
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_sasl_bind
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_send_initial_request
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_new_connection 1 1 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_int_open_connection
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_connect_to_host: TCP 
> localhost:389
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_new_socket: 16
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_prepare_socket: 16
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_connect_to_host: 
> Trying ::1 389
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_pvt_connect: fd: 16 
> tm: -1 async: 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_open_defconn: 
> successful
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_send_server_request
> Feb 20 12:21:20 sng02 dovecot: auth: Debug: master in: 
> USER#0111#011marco.carcano#011service=lda
> Feb 20 12:21:20 sng02 dovecot: auth: Debug: password(marco.carcano): 
> passdb doesn't support credential lookups
> Feb 20 12:21:20 sng02 dovecot: auth: Error: static(marco.carcano): 
> passdb doesn't support lookups, can't verify user's existence
> Feb 20 12:21:20 sng02 dovecot: auth: Debug: ldap(marco.carcano): user 
> search: base=DC=mydomain,DC=local scope=subtree 
> filter=(sAMAccountname=marco.carcano) fields=Mailbox,dovecotMailQuota
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_result ld 0x6cba60 
> msgid -1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg ld 0x6cba60
> msgid -1 (timeout 0 usec)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg continue ld 
> 0x6cba60 msgid -1 all 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Connections: Feb 20 12:21:20 sng02 dovecot: auth: Error: * host:
> localhost  port: 389  (default)
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   refcnt: 2  status: 
> Connected
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   last used: Wed Feb 20 
> 12:21:20 2013
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Outstanding Requests:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:  * msgid 1,  origid 1, 
> status InProgress
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    outstanding referrals
> 0, parent count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 request
> count 1 (abandoned 0)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60 Response 
> Queue:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    Empty
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 response 
> count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList ld 
> 0x6cba60 msgid -1 all 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList 
> returns ld 0x6cba60 NULL
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_int_select
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60
> msgid -1 all 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60
> msgid 1 message type bind
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60 0
> new referrals
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg:  mark request 
> completed, ld 0x6cba60 msgid 1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: request done: ld 0x6cba60 
> msgid 1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: res_errno: 0, res_error: 
> <>, res_matched: <>
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_free_request (origid 
> 1, msgid 1)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_parse_result
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_search
> Feb 20 12:21:20 sng02 dovecot: auth: Error: put_filter: 
> "(sAMAccountname=marco.carcano)"
> Feb 20 12:21:20 sng02 dovecot: auth: Error: put_filter: simple
> Feb 20 12:21:20 sng02 dovecot: auth: Error: put_simple_filter: 
> "sAMAccountname=marco.carcano"
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_send_initial_request
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_send_server_request
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_msgfree
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_result ld 0x6cba60 
> msgid -1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg ld 0x6cba60
> msgid -1 (timeout 0 usec)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg continue ld 
> 0x6cba60 msgid -1 all 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Connections: Feb 20 12:21:20 sng02 dovecot: auth: Error: * host:
> localhost  port: 389  (default)
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   refcnt: 2  status: 
> Connected
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   last used: Wed Feb 20 
> 12:21:20 2013
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Outstanding Requests:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:  * msgid 2,  origid 2, 
> status InProgress
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    outstanding referrals
> 0, parent count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 request
> count 1 (abandoned 0)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60 Response 
> Queue:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    Empty
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 response 
> count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList ld 
> 0x6cba60 msgid -1 all 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList 
> returns ld 0x6cba60 NULL
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_int_select
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_result ld 0x6cba60 
> msgid -1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg ld 0x6cba60
> msgid -1 (timeout 0 usec)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg continue ld 
> 0x6cba60 msgid -1 all 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Connections: Feb 20 12:21:20 sng02 dovecot: auth: Error: * host:
> localhost  port: 389  (default)
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   refcnt: 2  status: 
> Connected
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   last used: Wed Feb 20 
> 12:21:20 2013
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Outstanding Requests:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:  * msgid 2,  origid 2, 
> status InProgress
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    outstanding referrals
> 0, parent count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 request
> count 1 (abandoned 0)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60 Response 
> Queue:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    Empty
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 response 
> count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList ld 
> 0x6cba60 msgid -1 all 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList 
> returns ld 0x6cba60 NULL
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_int_select
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60
> msgid -1 all 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60
> msgid 2 message type search-entry
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_first_attribute
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_get_values
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_next_attribute
> Feb 20 12:21:20 sng02 dovecot: auth: Debug: ldap(marco.carcano): 
> result: dovecotMailQuota(quota_rule=%$)=*:storage=8192M
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_msgfree
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_result ld 0x6cba60 
> msgid -1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg ld 0x6cba60
> msgid -1 (timeout 0 usec)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg continue ld 
> 0x6cba60 msgid -1 all 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Connections: Feb 20 12:21:20 sng02 dovecot: auth: Error: * host:
> localhost  port: 389  (default)
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   refcnt: 2  status: 
> Connected
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   last used: Wed Feb 20 
> 12:21:20 2013
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Outstanding Requests:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:  * msgid 2,  origid 2, 
> status InProgress
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    outstanding referrals
> 0, parent count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 request
> count 1 (abandoned 0)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60 Response 
> Queue:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    Empty
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 response 
> count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList ld 
> 0x6cba60 msgid -1 all 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList 
> returns ld 0x6cba60 NULL
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_int_select
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60
> msgid -1 all 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60
> msgid 2 message type search-reference
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chase_v3referrals
> Feb 20 12:21:20 sng02 dovecot: auth: Error: 
> ldap_url_parse_ext(ldap://mydomain.local/CN=Configuration,DC=mydomain,DC=local)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: re_encode_request: new 
> msgid 3, new dn <CN=Configuration,DC=mydomain,DC=local>
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chase_v3referral: 
> msgid 2, url 
> "ldap://mydomain.local/CN=Configuration,DC=mydomain,DC=local"
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_send_server_request
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_new_connection 0 1 1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_int_open_connection
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_connect_to_host: TCP 
> mydomain.local:389
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_new_socket: 18
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_prepare_socket: 18
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_connect_to_host: 
> Trying 192.168.32.2:389
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_pvt_connect: fd: 18 
> tm: -1 async: 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: anonymous rebind via 
> ldap_sasl_bind("")
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_sasl_bind
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_send_initial_request
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_send_server_request
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_result ld 0x6cba60 
> msgid 4
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg ld 0x6cba60
> msgid 4 (timeout 100000 usec)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg continue ld 
> 0x6cba60 msgid 4 all 1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Connections: Feb 20 12:21:20 sng02 dovecot: auth: Error: * host:
> mydomain.local port: 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   refcnt: 2  status: 
> Connected
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   last used: Wed Feb 20 
> 12:21:20 2013
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   rebind in progress
> Feb 20 12:21:20 sng02 dovecot: auth: Error:     queue is empty
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error: * host: localhost  port: 
> 389  (default)
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   refcnt: 3  status: 
> Connected
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   last used: Wed Feb 20 
> 12:21:20 2013
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Outstanding Requests:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:  * msgid 4,  origid 4, 
> status InProgress
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    outstanding referrals
> 0, parent count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error:  * msgid 2,  origid 2, 
> status InProgress
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    outstanding referrals
> 1, parent count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 request
> count 2 (abandoned 0)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60 Response 
> Queue:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    Empty
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 response 
> count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList ld 
> 0x6cba60 msgid 4 all 1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList 
> returns ld 0x6cba60 NULL
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_int_select
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60
> msgid 4 all 1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60
> msgid 2 message type search-result
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60 0
> new referrals
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg:  mark request 
> completed, ld 0x6cba60 msgid 2
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg ld 0x6cba60 0 s 
> 99952 us to go
> Feb 20 12:21:20 sng02 dovecot: auth: Error: wait4msg continue ld 
> 0x6cba60 msgid 4 all 1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Connections: Feb 20 12:21:20 sng02 dovecot: auth: Error: * host:
> mydomain.local port: 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   refcnt: 2  status: 
> Connected
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   last used: Wed Feb 20 
> 12:21:20 2013
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   rebind in progress
> Feb 20 12:21:20 sng02 dovecot: auth: Error:     queue is empty
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error: * host: localhost  port: 
> 389  (default)
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   refcnt: 2  status: 
> Connected
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   last used: Wed Feb 20 
> 12:21:20 2013
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60
> Outstanding Requests:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:  * msgid 4,  origid 4, 
> status InProgress
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    outstanding referrals
> 0, parent count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error:  * msgid 2,  origid 2, 
> status RequestCompleted
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    outstanding referrals
> 1, parent count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 request
> count 2 (abandoned 0)
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ** ld 0x6cba60 Response 
> Queue:
> Feb 20 12:21:20 sng02 dovecot: auth: Error:    Empty
> Feb 20 12:21:20 sng02 dovecot: auth: Error:   ld 0x6cba60 response 
> count 0
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList ld 
> 0x6cba60 msgid 4 all 1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_chkResponseList 
> returns ld 0x6cba60 NULL
> Feb 20 12:21:20 sng02 dovecot: auth: Error: ldap_int_select
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60
> msgid 4 all 1
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60
> msgid 4 message type bind
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg: ld 0x6cba60 0
> new referrals
> Feb 20 12:21:20 sng02 dovecot: auth: Error: read1msg:  mark request 
> completed, ld 0x6cba60 msgid 4
> Feb 20 12:21:22 sng02 postfix/smtpd[8928]: disconnect from 
> localhost[127.0.0.1]
> Feb 20 12:23:55 sng02 dovecot: lda: Error: userdb 
> lookup(marco.carcano): Request timed out
> Feb 20 12:23:55 sng02 dovecot: lda: Fatal: Internal error occurred. 
> Refer to server log for more information.
> Feb 20 12:23:56 sng02 postfix/pipe[8897]: A38D4407F5:
> to=<marco.carcano @ mydomain.local>, orig_to=<mac @ mydomain.com>,
> relay=dovecot, delay=171, delays=16/0.01/0/155, dsn=4.3.0,
> status=deferred (temporary failure)
> Feb 20 12:24:10 sng02 dovecot: master: Warning: Killed with signal 15 
> (by pid=8946 uid=0 code=kill)
> Feb 20 12:24:10 sng02 dovecot: auth: ldap(marco.carcano): Shutting
> down Feb 20 12:24:10 sng02 dovecot: auth: Debug: master out: FAIL#0111
> Feb 20 12:24:10 sng02 dovecot: auth: Error: ldap_unbind
> Feb 20 12:24:10 sng02 dovecot: auth: Error: ldap_free_request (origid 
> 2, msgid 3)
> Feb 20 12:24:10 sng02 dovecot: auth: Error: ldap_free_request (origid 
> 2, msgid 2)
> Feb 20 12:24:10 sng02 dovecot: auth: Error: ldap_free_connection 1 1
> Feb 20 12:24:10 sng02 dovecot: auth: Error: ldap_send_unbind
> Feb 20 12:24:10 sng02 dovecot: auth: Error: ldap_free_connection: 
> actually freed
> Feb 20 12:24:10 sng02 dovecot: auth: Error: ldap_free_connection 1 1
> Feb 20 12:24:10 sng02 dovecot: auth: Error: ldap_send_unbind
> Feb 20 12:24:10 sng02 dovecot: auth: Error: ldap_free_connection: 
> actually freed
> Feb 20 12:24:18 sng02 postfix/postfix-script[8962]: stopping the 
> Postfix mail system
> Feb 20 12:24:18 sng02 postfix/master[8886]: terminating on signal 15
> 
> ############################## END OF FAULTY DELIVER LOG 
> #############################################
> 
> I'll add the log of a succefully delivered message in another mail 
> (otherwise I exceed message size limit of the list)
> 
> 



-- 
Kind regards,
Mit freundlichen Grüßen,
Christian Wiese

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http://www.securepoint.de
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Lueneburg HRB 1776
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