[Dovecot] Can't get authentication for masterusers on Mac OS X Server 10.6.8

[list at grootstyr.eu]

Since you've defined verbose auth logging you should get some 
interesting log files about your failed login attempts that could point 
us in the right direction.

	Matthijs

On Mon, Mar 03, 2014 at 03:37:31PM +0100, Gilles Celli wrote:
> Hi dovecot masters,
> 
> This is my first post here, since I desperately need some advices from the dovecot community.
> I've tried to get an answer on the Apple Forums but til now no luck....here we go:
> 
> I've tried to sync our users emails (Mac OS X Server 10.6.8 Snow Leopard with dovecot 1.1.20-apple0.5) via imapsync
> to our new server by using the masterusers authentication method on the old 10.6.8 server...
> 
> The main problem on OS X Server 10.6.8 is that dovecot 1.1.20 uses the OD (OpenDirectory) driver (well I think),
> so that when following the directions of Master users/password from this page I can't login with the
> http://wiki1.dovecot.org/Authentication/MasterUsers
> 
> I couldn't find anything on the OD driver directive....the dovecot 1.1.20-apple build doesn't even have the shadow driver built in (see below the dovecot --build-options),
> so that passdb shadow {} won't work anyway
> 
> 
> I always get NO Authentication failed, when trying the following:
> >telnet localhost 143
> Trying 127.0.0.1...
> Connected to localhost.
> Escape character is '^]'.
> * OK Dovecot ready.
> 1 login user1*mailadmin PASSWORD
> 1 NO Authentication failed.
>  
> I've tried also to add a Post-login scripting like described here, but no luck either:
> http://www.stefanux.de/wiki/doku.php/server/dovecot
> 
> Does someone know how to fix my migration issue ?
> 
> Any help is greatly appreciated.
> 
> Gilles
> 
> Here's my dovecot :
> 
> >dovecotd --build-options
> Build options: ioloop=kqueue notify=kqueue ipv6 openssl
> Mail storages: maildir mbox dbox cydir raw
> SQL drivers:
> Passdb: checkpassword od pam passwd passwd-file
> Userdb: od passwd passwd-file prefetch static
> 
> 
> Here's my dovecot -n output:
> 
> >dovecotd -n
> 
> # 1.1.20apple0.5: /private/etc/dovecot/dovecot.conf
> Warning: fd limit 256 is lower than what Dovecot can use under full load (more than 306). Either grow the limit or change login_max_processes_count and max_mail_processes settings
> # OS: Darwin 10.8.0 i386  hfs
> base_dir: /var/run/dovecot
> syslog_facility: local6
> protocols: pop3 imap pop3s imaps
> ssl_ca_file: /etc/certificates/Default.DB14D82BF89A0DDCE123137BC94AEA0C94DDD838.chain.pem
> ssl_cert_file: /etc/certificates/Default.DB14D82BF89A0DDCE123137BC94AEA0C94DDD838.cert.pem
> ssl_key_file: /etc/certificates/Default.DB14D82BF89A0DDCE123137BC94AEA0C94DDD838.key.pem
> ssl_cipher_list: ALL:!LOW:!SSLv2:!aNULL:!ADH:!eNULL
> disable_plaintext_auth: no
> 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_user: _dovecot
> login_process_per_connection: no
> max_mail_processes: 50
> mail_max_userip_connections(default): 20
> mail_max_userip_connections(imap): 20
> mail_max_userip_connections(pop3): 10
> verbose_proctitle: yes
> first_valid_uid: 6
> first_valid_gid: 6
> mail_access_groups: mail
> mail_location: maildir:/var/spool/imap/dovecot/mail/%u
> mail_executable(default): /usr/libexec/dovecot/imap
> mail_executable(imap): /usr/libexec/dovecot/imap
> mail_executable(pop3): /usr/libexec/dovecot/pop3
> mail_process_sharing: full
> mail_max_connections(default): 10
> mail_max_connections(imap): 10
> mail_max_connections(pop3): 5
> mail_plugins(default): quota imap_quota
> mail_plugins(imap): quota imap_quota
> mail_plugins(pop3): quota
> mail_plugin_dir(default): /usr/lib/dovecot/imap
> mail_plugin_dir(imap): /usr/lib/dovecot/imap
> mail_plugin_dir(pop3): /usr/lib/dovecot/pop3
> lda:
>   postmaster_address: postmaster at example.com
>   hostname: mymailserver.example.com
>   mail_plugins: quota
>   quota_full_tempfail: yes
>   sendmail_path: /usr/sbin/sendmail
>   auth_socket_path: /var/run/dovecot/auth-master
>   log_path: /var/log/mailaccess.log
>   info_log_path: /var/log/mailaccess.log
> auth default:
>   mechanisms: plain login gssapi apop cram-md5
>   master_user_separator: *
>   verbose: yes
>   passdb:
>     driver: passwd-file
>     args: /etc/dovecot/passwd.masterusers
>     pass: yes
>     master: yes
>   passdb:
>     driver: od
>   userdb:
>     driver: od
>     args: partition=/etc/dovecot/partition_map.conf enforce_quotas=no
>   socket:
>     type: listen
>     master:
>       path: /var/run/dovecot/auth-master
>       mode: 384
>       user: _dovecot
>       group: mail
> plugin:
>   quota_warning: storage=100%% /usr/libexec/dovecot/quota-exceeded.sh
>   quota_warning2: storage=90%% /usr/libexec/dovecot/quota-warning.sh
>   quota: maildir:User quota
>   sieve: /var/spool/imap/dovecot/sieve-scripts/%u/dovecot.sieve
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