dovecot - Mar 2014 - Using a Sieve script to handle delivery to public mailboxes

Hello everyone,
I'm setting up a Postfix+Dovecot stack with virtual domains and public 
mailboxes.

I set up a shared mailbox "office at mydomain.com" as described in the
Dovecot Wiki [1], that is:
- I created the directory "/var/mail/mydomain.com/public/" and inside
   it I created the ".office" mailbox;
- I added an appropriate ACL to allow the account
   "president at mydomain.com" to read and edit that mailbox under a
public
   namespace;
- I added a Sieve script to handle delivery to the public mailbox (its
   location is /var/mail/mydomain.com/public/.office/.dovecot.sieve).

Some other relevant details about my configuration:
- The backend used by Postfix and Dovecot to handle virtual
   aliases/domains/maps is a MySQL database. Since the virtual user
   table is used by other applications as well, I decided to keep it
   "clean" and to make use of another "virtual mailboxes"
table (see
   /etc/dovecot/dovecot-sql.conf.ext below). The password_query setting
   returns only results from the virtual user table (so that only real
   users can authenticate on the IMAP server), while the user_query
   setting returns results from both the virtual user and the virtual
   mailbox table (so that dovecot-lda can choose the correct mailbox).
- The queries saved in password_query and user_query return the correct
   results when executed manually: the home directory for the
   "office at mydomain.com" virtual mailbox is set to
/var/mail/mydomain.com
   /public/.office.
- Delivery from and to the "president at mydomain.com" account is
regular,
   and that account is able to access the "office at mydomain.com"
virtual
   mailbox (I have tested this by speaking IMAP to the server and by
   performing a manual check using Thunderbird).

I encountered a problem with this setup: when I send a message to the 
"office at mydomain.com" account, the Postfix logs say it is correctly
delivered via Dovecot, but the Sieve script says it can not find the 
folder "Public/.office". As a consequence, Dovecot creates a new
Maildir
in /var/mail/mydomain.com/office and delivers the mail there instead of 
saving it in the correct directory (/var/mail/mydomain.com/public/.office).

Is there something I set incorrectly in my configuration? What is 
causing Dovecot not to recognize the correct mailbox during delivery? Is 
there a way to list all mailboxes seen by dovecot-lda itself?

Thanks,
Alessandro Menti

[1] http://wiki2.dovecot.org/SharedMailboxes/Public
-----
Dovecot and OS version: 2.0.19, Ubuntu 12.04 LTS
Output of "dovecot -n":
> # 2.0.19: /etc/dovecot/dovecot.conf
> # OS: Linux 3.5.0-46-generic i686 Ubuntu 12.04.4 LTS ext4
> auth_mechanisms = plain login
> login_greeting = IMAP server ready.
> mail_debug = yes
> mail_gid = vmail
> mail_location = maildir:/var/mail/%d/%n/Maildir
> mail_plugins = acl
> mail_uid = vmail
> namespace {
>   inbox = yes
>   location >   prefix >   separator = /
>   type = private
> }
> namespace {
>   list = children
>   location = maildir:/var/mail/mydomain.com/public
>   prefix = Public/
>   separator = /
>   subscriptions = no
>   type = public
> }
> passdb {
>   args = /etc/dovecot/dovecot-sql.conf.ext
>   driver = sql
> }
> plugin {
>   acl = vfile
>   sieve = ~/.dovecot.sieve
>   sieve_before = /var/mail/sieve/
>   sieve_dir = ~/sieve
> }
> postmaster_address = postmaster at mydomain.com
> protocols = " imap"
> service auth {
>   unix_listener /var/spool/postfix/private/auth {
>     group = postfix
>     mode = 0660
>     user = postfix
>   }
>   unix_listener auth-userdb {
>     group = vmail
>     mode = 0660
>     user = dovecot
>   }
> }
> ssl_cert = </etc/ssl/srvcerts/mailcert-withintcas.cer
> ssl_cipher_list =
EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:AES256-SHA256:AES256-SHA:RC4-SHA:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS
> ssl_key = </etc/ssl/private/mailcert.pvk
> userdb {
>   args = /etc/dovecot/dovecot-sql.conf.ext
>   driver = sql
> }
> protocol lda {
>   info_log_path = /var/log/dovecot-lda.log
>   log_path = /var/log/dovecot-lda-errors.log
>   mail_plugins = acl sieve
> }
> protocol imap {
>   mail_plugins = acl imap_acl
> }
/etc/dovecot/dovecot-sql.conf.ext:
> driver = mysql
> connect = host=127.0.0.1 dbname=dbname user=username password=password
> default_pass_scheme = SHA512-CRYPT
> password_query = SELECT email as user, password FROM virtual_users WHERE
email='%u';
> user_query = SELECT home FROM virtual_users WHERE email = '%u'
UNION SELECT home FROM virtual_shared_mailboxes WHERE email = '%u'
Extract from /var/log/mail.log:
> Mar 15 11:43:07 phoenix postfix/pickup[1404]: 3BA221FFD1: uid=0
from=<sysadmin>
> Mar 15 11:43:07 phoenix postfix/cleanup[4871]: 3BA221FFD1:
message-id=<20140315104307.3BA221FFD1 at mail.mydomain.com>
> Mar 15 11:43:07 phoenix postfix/qmgr[7691]: 3BA221FFD1: from=<sysadmin
at mydomain.com>, size=316, nrcpt=1 (queue active)
> Mar 15 11:43:07 phoenix dovecot: auth-worker: mysql(127.0.0.1): Connected
to database mailserver
> Mar 15 11:43:07 phoenix postfix/pipe[4875]: 3BA221FFD1: to=<office at
mydomain.com>, relay=dovecot, delay=0.15, delays=0.05/0.03/0/0.07, dsn=2.0.0,
status=sent (delivered via dovecot service)
> Mar 15 11:43:07 phoenix postfix/qmgr[7691]: 3BA221FFD1: removed
Extract from /var/log/dovecot-lda.log:
> Mar 15 11:43:07 lda: Debug: Loading modules from directory:
/usr/lib/dovecot/modules
> Mar 15 11:43:07 lda: Debug: Module loaded:
/usr/lib/dovecot/modules/lib01_acl_plugin.so
> Mar 15 11:43:07 lda: Debug: Module loaded:
/usr/lib/dovecot/modules/lib90_sieve_plugin.so
> Mar 15 11:43:07 lda: Debug: auth input: office at mydomain.com
home=/var/mail/mydomain.com/public/.office
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: Effective uid=1002,
gid=999, home=/var/mail/mydomain.com/public/.office
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: No acl_shared_dict
setting - shared mailbox listing is disabled
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: Namespace :
type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes
location=maildir:/var/mail/mydomain.com/office/Maildir
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: maildir++:
root=/var/mail/mydomain.com/office/Maildir, index=, control=,
inbox=/var/mail/mydomain.com/office/Maildir, alt> Mar 15 11:43:07 lda(office
at mydomain.com): Debug: Namespace : /var/mail/mydomain.com/office/Maildir
doesn't exist yet, using default permissions
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: Namespace : Using
permissions from /var/mail/mydomain.com/office/Maildir: mode=0700 gid=-1
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: initializing
backend with data: vfile
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: acl username =
office at mydomain.com
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: owner = 1
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl vfile: Global ACL
directory: (none)
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: Namespace :
type=public, prefix=Public/, sep=/, inbox=no, hidden=no, list=children,
subscriptions=no location=maildir:/var/mail/mydomain.com/public
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: maildir++:
root=/var/mail/mydomain.com/public, index=, control=, inbox=, alt> Mar 15
11:43:07 lda(office at mydomain.com): Debug: acl: initializing backend with
data: vfile
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: acl username =
office at mydomain.com
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: owner = 0
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl vfile: Global ACL
directory: (none)
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: No acl_shared_dict
setting - shared mailbox listing is disabled
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: none: root=, index=,
control=, inbox=, alt> Mar 15 11:43:07 lda(office at mydomain.com): Debug:
Destination address: office at mydomain.com (source: user at hostname)
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: include:
sieve_global_dir is not set; it is currently not possible to include
`:global' scripts.
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: using sieve path
for user's script: /var/mail/mydomain.com/public/.office/.dovecot.sieve
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: opening script
/var/mail/mydomain.com/public/.office/.dovecot.sieve
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: script binary
/var/mail/mydomain.com/public/.office/.dovecot.svbin successfully loaded
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: binary save: not
saving binary /var/mail/mydomain.com/public/.office/.dovecot.svbin, because it
is already stored
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: executing script
from /var/mail/mydomain.com/public/.office/.dovecot.svbin
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl vfile: reading file
/var/mail/mydomain.com/public/.office/dovecot-acl
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl vfile: file
/var/mail/mydomain.com/public/dovecot-acl not found
> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl vfile: file
/var/mail/mydomain.com/office/Maildir/dovecot-acl not found
> Mar 15 11:43:07 lda(office at mydomain.com): Info: sieve:
msgid=<20140315104307.3BA221FFD1 at mail.mydomain.com>: stored mail into
mailbox 'INBOX'
Extract from
/var/mail/mydomain.com/public/.office/.dovecot.sieve.log:
> sieve: info: started log at Mar 15 11:43:07.
> error: msgid=<20140315104307.3BA221FFD1 at mail.mydomain.com>: failed
to store into mailbox 'Public/office': Mailbox doesn't exist:
office.
Listing of /var/mail/mydomain.com/public/.office:
> $ sudo ls /var/mail/mydomain.com/public/.office -lA
> total 56
> drwxr-x--- 2 vmail vmail  4096 mar 14 17:14 cur
> -rw-r--r-- 1 root  root     98 mar  9 18:05 dovecot-acl
> -rw-r----- 1 vmail vmail 18432 mar 15 10:36 dovecot.index.cache
> -rw-r----- 1 vmail vmail  1088 mar 15 10:36 dovecot.index.log
> -rw-r--r-- 1 vmail vmail     0 mar 14 21:50 dovecot-shared
> -rw-r--r-- 1 root  root     50 mar 15 11:42 .dovecot.sieve
> -rw------- 1 vmail vmail   188 mar 15 11:43 .dovecot.sieve.log
> -rw-r--r-- 1 vmail vmail   124 mar 15 11:42 .dovecot.svbin
> -rw-r----- 1 vmail vmail    98 mar 14 17:13 dovecot-uidlist
> drwxr-x--- 2 vmail vmail  4096 mar 14 16:25 new
> drwxr-x--- 2 vmail vmail  4096 mar 15 08:48 tmp
Contents of
/var/mail/mydomain.com/public/.office/.dovecot.sieve:
> require "fileinto";
> fileinto "Public/office";
ACL for the "office" shared mailbox:
> $ sudo cat /var/mail/mydomain.com/public/.office/dovecot-acl
> user=president at mydomain.com lrwstipe
Transcript of an IMAP session listing all folders:
> * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE
AUTH=PLAIN AUTH=LOGIN] IMAP server ready.
> a01 LOGIN president at mydomain.com password
> a01 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT
CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH
ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS ACL RIGHTS=texk] Logged in
> a02 LIST "" "*"
> * LIST (\HasNoChildren) "/" "Infected Items"
> * LIST (\HasNoChildren) "/" "Recycle Bin"
> * LIST (\HasNoChildren) "/" "Spam"
> * LIST (\HasNoChildren) "/" "Trash"
> * LIST (\HasNoChildren) "/" "Drafts"
> * LIST (\HasNoChildren) "/" "Sent Mail"
> * LIST (\HasNoChildren) "/" "INBOX"
> * LIST (\HasNoChildren) "/" "Public/office"
> a02 OK List completed.
> a03 LOGOUT
> * BYE Logging out
> a03 OK Logout completed.

On 3/15/2014 2:57 PM, Alessandro Menti wrote:
> Hello everyone,
> I'm setting up a Postfix+Dovecot stack with virtual domains and public
> mailboxes.
[...]
> I encountered a problem with this setup: when I send a message to the
> "office at mydomain.com" account, the Postfix logs say it is
correctly
> delivered via Dovecot, but the Sieve script says it can not find the
> folder "Public/.office". As a consequence, Dovecot creates a new
> Maildir in /var/mail/mydomain.com/office and delivers the mail there
> instead of saving it in the correct directory
> (/var/mail/mydomain.com/public/.office).
>
> Is there something I set incorrectly in my configuration? What is
> causing Dovecot not to recognize the correct mailbox during delivery?
> Is there a way to list all mailboxes seen by dovecot-lda itself? K
> Logout completed.
I must say I haven't tried using Sieve with public folders so far.
However, I cannot quite imagine why this wouldn't work. Can you
successfully append messages to the public folder through IMAP?

Regards,

Stephan.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Sat, 15 Mar 2014, Alessandro Menti wrote:

Dear Alessandro,

see below mail_location, SQL query and debug output ... .

IMHO, the behaviour matches your config.
> I'm setting up a Postfix+Dovecot stack with virtual domains and public 
> mailboxes.
>
> I set up a shared mailbox "office@mydomain.com" as described in
the Dovecot
> Wiki [1], that is:
> - I created the directory "/var/mail/mydomain.com/public/" and
inside
>  it I created the ".office" mailbox;
> - I added an appropriate ACL to allow the account
>  "president@mydomain.com" to read and edit that mailbox under a
public
>  namespace;
> - I added a Sieve script to handle delivery to the public mailbox (its
>  location is /var/mail/mydomain.com/public/.office/.dovecot.sieve).
>
> Some other relevant details about my configuration:
> - The backend used by Postfix and Dovecot to handle virtual
>  aliases/domains/maps is a MySQL database. Since the virtual user
>  table is used by other applications as well, I decided to keep it
>  "clean" and to make use of another "virtual mailboxes"
table (see
>  /etc/dovecot/dovecot-sql.conf.ext below). The password_query setting
>  returns only results from the virtual user table (so that only real
>  users can authenticate on the IMAP server), while the user_query
>  setting returns results from both the virtual user and the virtual
>  mailbox table (so that dovecot-lda can choose the correct mailbox).
> - The queries saved in password_query and user_query return the correct
>  results when executed manually: the home directory for the
>  "office@mydomain.com" virtual mailbox is set to
/var/mail/mydomain.com
>  /public/.office.
> - Delivery from and to the "president@mydomain.com" account is
regular,
>  and that account is able to access the "office@mydomain.com"
virtual
>  mailbox (I have tested this by speaking IMAP to the server and by
>  performing a manual check using Thunderbird).
>
> I encountered a problem with this setup: when I send a message to the 
> "office@mydomain.com" account, the Postfix logs say it is
correctly delivered
> via Dovecot, but the Sieve script says it can not find the folder 
> "Public/.office". As a consequence, Dovecot creates a new Maildir
in
> /var/mail/mydomain.com/office and delivers the mail there instead of saving
> it in the correct directory (/var/mail/mydomain.com/public/.office).
>
> Is there something I set incorrectly in my configuration? What is causing 
> Dovecot not to recognize the correct mailbox during delivery? Is there a
way
> to list all mailboxes seen by dovecot-lda itself?
>
> Thanks,
> Alessandro Menti
>
> [1] http://wiki2.dovecot.org/SharedMailboxes/Public
> -----
> Dovecot and OS version: 2.0.19, Ubuntu 12.04 LTS
> Output of "dovecot -n":
>> # 2.0.19: /etc/dovecot/dovecot.conf
>> # OS: Linux 3.5.0-46-generic i686 Ubuntu 12.04.4 LTS ext4
>> auth_mechanisms = plain login
>> login_greeting = IMAP server ready.
>> mail_debug = yes
>> mail_gid = vmail
>> mail_location = maildir:/var/mail/%d/%n/Maildir
  ^^^ default maillocation /var/mail/<domain>/office/Maildir
>> mail_plugins = acl
>> mail_uid = vmail
>> namespace {
>>   inbox = yes
>>   location >>   prefix >>   separator = /
>>   type = private
>> }
>> namespace {
>>   list = children
>>   location = maildir:/var/mail/mydomain.com/public
>>   prefix = Public/
>>   separator = /
>>   subscriptions = no
>>   type = public
>> }
>> passdb {
>>   args = /etc/dovecot/dovecot-sql.conf.ext
>>   driver = sql
>> }
>> plugin {
>>   acl = vfile
>>   sieve = ~/.dovecot.sieve
>>   sieve_before = /var/mail/sieve/
>>   sieve_dir = ~/sieve
>> }
>> postmaster_address = postmaster@mydomain.com
>> protocols = " imap"
>> service auth {
>>   unix_listener /var/spool/postfix/private/auth {
>>     group = postfix
>>     mode = 0660
>>     user = postfix
>>   }
>>   unix_listener auth-userdb {
>>     group = vmail
>>     mode = 0660
>>     user = dovecot
>>   }
>> }
>> ssl_cert = </etc/ssl/srvcerts/mailcert-withintcas.cer
>> ssl_cipher_list = 
>>
EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:AES256-SHA256:AES256-SHA:RC4-SHA:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS
>> ssl_key = </etc/ssl/private/mailcert.pvk
>> userdb {
>>   args = /etc/dovecot/dovecot-sql.conf.ext
>>   driver = sql
>> }
>> protocol lda {
>>   info_log_path = /var/log/dovecot-lda.log
>>   log_path = /var/log/dovecot-lda-errors.log
>>   mail_plugins = acl sieve
>> }
>> protocol imap {
>>   mail_plugins = acl imap_acl
>> }
>
> /etc/dovecot/dovecot-sql.conf.ext:
>> driver = mysql
>> connect = host=127.0.0.1 dbname=dbname user=username password=password
>> default_pass_scheme = SHA512-CRYPT
>> password_query = SELECT email as user, password FROM virtual_users
WHERE
>> email='%u';
>> user_query = SELECT home FROM virtual_users WHERE email = '%u'
UNION SELECT
>> home FROM virtual_shared_mailboxes WHERE email = '%u'
The UserDB query does _not_ return mail, hence, does not override default 
mail_location, which does _not_ depend on HOME.
>
> Extract from /var/log/mail.log:
>> Mar 15 11:43:07 phoenix postfix/pickup[1404]: 3BA221FFD1: uid=0 
>> from=<sysadmin>
>> Mar 15 11:43:07 phoenix postfix/cleanup[4871]: 3BA221FFD1: 
>> message-id=<20140315104307.3BA221FFD1@mail.mydomain.com>
>> Mar 15 11:43:07 phoenix postfix/qmgr[7691]: 3BA221FFD1: 
>> from=<sysadmin@mydomain.com>, size=316, nrcpt=1 (queue active)
>> Mar 15 11:43:07 phoenix dovecot: auth-worker: mysql(127.0.0.1):
Connected
>> to database mailserver
>> Mar 15 11:43:07 phoenix postfix/pipe[4875]: 3BA221FFD1: 
>> to=<office@mydomain.com>, relay=dovecot, delay=0.15, 
>> delays=0.05/0.03/0/0.07, dsn=2.0.0, status=sent (delivered via dovecot 
>> service)
>> Mar 15 11:43:07 phoenix postfix/qmgr[7691]: 3BA221FFD1: removed
>
> Extract from /var/log/dovecot-lda.log:
>> Mar 15 11:43:07 lda: Debug: Loading modules from directory: 
>> /usr/lib/dovecot/modules
>> Mar 15 11:43:07 lda: Debug: Module loaded: 
>> /usr/lib/dovecot/modules/lib01_acl_plugin.so
>> Mar 15 11:43:07 lda: Debug: Module loaded: 
>> /usr/lib/dovecot/modules/lib90_sieve_plugin.so
>> Mar 15 11:43:07 lda: Debug: auth input: office@mydomain.com 
>> home=/var/mail/mydomain.com/public/.office
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: Effective uid=1002, 
>> gid=999, home=/var/mail/mydomain.com/public/.office
^^ This matches the UserDB query, but is not used by mail location.
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl: No
acl_shared_dict
>> setting - shared mailbox listing is disabled
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: Namespace :
type=private,
>> prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes 
>> location=maildir:/var/mail/mydomain.com/office/Maildir
^^  This matches the default mail_location
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: maildir++: 
>> root=/var/mail/mydomain.com/office/Maildir, index=, control=, 
>> inbox=/var/mail/mydomain.com/office/Maildir, alt>> Mar 15
11:43:07 lda(office@mydomain.com): Debug: Namespace :
>> /var/mail/mydomain.com/office/Maildir doesn't exist yet, using
default
>> permissions
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: Namespace : Using 
>> permissions from /var/mail/mydomain.com/office/Maildir: mode=0700
gid=-1
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl: initializing
backend
>> with data: vfile
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl: acl username = 
>> office@mydomain.com
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl: owner = 1
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl vfile: Global ACL 
>> directory: (none)
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: Namespace :
type=public,
>> prefix=Public/, sep=/, inbox=no, hidden=no, list=children,
subscriptions=no
>> location=maildir:/var/mail/mydomain.com/public
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: maildir++: 
>> root=/var/mail/mydomain.com/public, index=, control=, inbox=,
alt>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl: initializing
backend
>> with data: vfile
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl: acl username = 
>> office@mydomain.com
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl: owner = 0
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl vfile: Global ACL 
>> directory: (none)
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl: No
acl_shared_dict
>> setting - shared mailbox listing is disabled
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: none: root=, index=, 
>> control=, inbox=, alt>> Mar 15 11:43:07 lda(office@mydomain.com):
Debug: Destination address:
>> office@mydomain.com (source: user@hostname)
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: sieve: include: 
>> sieve_global_dir is not set; it is currently not possible to include 
>> `:global' scripts.
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: sieve: using sieve
path
>> for user's script:
/var/mail/mydomain.com/public/.office/.dovecot.sieve
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: sieve: opening script 
>> /var/mail/mydomain.com/public/.office/.dovecot.sieve
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: sieve: script binary 
>> /var/mail/mydomain.com/public/.office/.dovecot.svbin successfully
loaded
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: sieve: binary save:
not
>> saving binary /var/mail/mydomain.com/public/.office/.dovecot.svbin,
because
>> it is already stored
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: sieve: executing
script
>> from /var/mail/mydomain.com/public/.office/.dovecot.svbin
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl vfile: reading
file
>> /var/mail/mydomain.com/public/.office/dovecot-acl
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl vfile: file 
>> /var/mail/mydomain.com/public/dovecot-acl not found
>> Mar 15 11:43:07 lda(office@mydomain.com): Debug: acl vfile: file 
>> /var/mail/mydomain.com/office/Maildir/dovecot-acl not found
>> Mar 15 11:43:07 lda(office@mydomain.com): Info: sieve: 
>> msgid=<20140315104307.3BA221FFD1@mail.mydomain.com>: stored mail
into
>> mailbox 'INBOX'
>
> Extract from /var/mail/mydomain.com/public/.office/.dovecot.sieve.log:
>> sieve: info: started log at Mar 15 11:43:07.
>> error: msgid=<20140315104307.3BA221FFD1@mail.mydomain.com>:
failed to store
>> into mailbox 'Public/office': Mailbox doesn't exist:
office.
>
> Listing of /var/mail/mydomain.com/public/.office:
>> $ sudo ls /var/mail/mydomain.com/public/.office -lA
>> total 56
>> drwxr-x--- 2 vmail vmail  4096 mar 14 17:14 cur
>> -rw-r--r-- 1 root  root     98 mar  9 18:05 dovecot-acl
>> -rw-r----- 1 vmail vmail 18432 mar 15 10:36 dovecot.index.cache
>> -rw-r----- 1 vmail vmail  1088 mar 15 10:36 dovecot.index.log
>> -rw-r--r-- 1 vmail vmail     0 mar 14 21:50 dovecot-shared
>> -rw-r--r-- 1 root  root     50 mar 15 11:42 .dovecot.sieve
>> -rw------- 1 vmail vmail   188 mar 15 11:43 .dovecot.sieve.log
>> -rw-r--r-- 1 vmail vmail   124 mar 15 11:42 .dovecot.svbin
>> -rw-r----- 1 vmail vmail    98 mar 14 17:13 dovecot-uidlist
>> drwxr-x--- 2 vmail vmail  4096 mar 14 16:25 new
>> drwxr-x--- 2 vmail vmail  4096 mar 15 08:48 tmp
>
> Contents of /var/mail/mydomain.com/public/.office/.dovecot.sieve:
>> require "fileinto";
>> fileinto "Public/office";
>
> ACL for the "office" shared mailbox:
>> $ sudo cat /var/mail/mydomain.com/public/.office/dovecot-acl
>> user=president@mydomain.com lrwstipe
>
> Transcript of an IMAP session listing all folders:
>> * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
IDLE
>> AUTH=PLAIN AUTH=LOGIN] IMAP server ready.
>> a01 LOGIN president@mydomain.com password
>> a01 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
>> IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND
UNSELECT
>> CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC 
>> ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS ACL
RIGHTS=texk]
>> Logged in
>> a02 LIST "" "*"
>> * LIST (\HasNoChildren) "/" "Infected Items"
>> * LIST (\HasNoChildren) "/" "Recycle Bin"
>> * LIST (\HasNoChildren) "/" "Spam"
>> * LIST (\HasNoChildren) "/" "Trash"
>> * LIST (\HasNoChildren) "/" "Drafts"
>> * LIST (\HasNoChildren) "/" "Sent Mail"
>> * LIST (\HasNoChildren) "/" "INBOX"
>> * LIST (\HasNoChildren) "/" "Public/office"
>> a02 OK List completed.
>> a03 LOGOUT
>> * BYE Logging out
>> a03 OK Logout completed.
>
- -- 
Steffen Kaiser
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On Sat, 15 Mar 2014, Alessandro Menti wrote:

Dear Alessandro,

see below mail_location, SQL query and debug output ... .

IMHO, the behaviour matches your config.
> I'm setting up a Postfix+Dovecot stack with virtual domains and public 
> mailboxes.
>
> I set up a shared mailbox "office at mydomain.com" as described
in the Dovecot
> Wiki [1], that is:
> - I created the directory "/var/mail/mydomain.com/public/" and
inside
>  it I created the ".office" mailbox;
> - I added an appropriate ACL to allow the account
>  "president at mydomain.com" to read and edit that mailbox under
a public
>  namespace;
> - I added a Sieve script to handle delivery to the public mailbox (its
>  location is /var/mail/mydomain.com/public/.office/.dovecot.sieve).
>
> Some other relevant details about my configuration:
> - The backend used by Postfix and Dovecot to handle virtual
>  aliases/domains/maps is a MySQL database. Since the virtual user
>  table is used by other applications as well, I decided to keep it
>  "clean" and to make use of another "virtual mailboxes"
table (see
>  /etc/dovecot/dovecot-sql.conf.ext below). The password_query setting
>  returns only results from the virtual user table (so that only real
>  users can authenticate on the IMAP server), while the user_query
>  setting returns results from both the virtual user and the virtual
>  mailbox table (so that dovecot-lda can choose the correct mailbox).
> - The queries saved in password_query and user_query return the correct
>  results when executed manually: the home directory for the
>  "office at mydomain.com" virtual mailbox is set to
/var/mail/mydomain.com
>  /public/.office.
> - Delivery from and to the "president at mydomain.com" account is
regular,
>  and that account is able to access the "office at mydomain.com"
virtual
>  mailbox (I have tested this by speaking IMAP to the server and by
>  performing a manual check using Thunderbird).
>
> I encountered a problem with this setup: when I send a message to the 
> "office at mydomain.com" account, the Postfix logs say it is
correctly delivered
> via Dovecot, but the Sieve script says it can not find the folder 
> "Public/.office". As a consequence, Dovecot creates a new Maildir
in
> /var/mail/mydomain.com/office and delivers the mail there instead of saving
> it in the correct directory (/var/mail/mydomain.com/public/.office).
>
> Is there something I set incorrectly in my configuration? What is causing 
> Dovecot not to recognize the correct mailbox during delivery? Is there a
way
> to list all mailboxes seen by dovecot-lda itself?
>
> Thanks,
> Alessandro Menti
>
> [1] http://wiki2.dovecot.org/SharedMailboxes/Public
> -----
> Dovecot and OS version: 2.0.19, Ubuntu 12.04 LTS
> Output of "dovecot -n":
>> # 2.0.19: /etc/dovecot/dovecot.conf
>> # OS: Linux 3.5.0-46-generic i686 Ubuntu 12.04.4 LTS ext4
>> auth_mechanisms = plain login
>> login_greeting = IMAP server ready.
>> mail_debug = yes
>> mail_gid = vmail
>> mail_location = maildir:/var/mail/%d/%n/Maildir
  ^^^ default maillocation /var/mail/<domain>/office/Maildir
>> mail_plugins = acl
>> mail_uid = vmail
>> namespace {
>>   inbox = yes
>>   location >>   prefix >>   separator = /
>>   type = private
>> }
>> namespace {
>>   list = children
>>   location = maildir:/var/mail/mydomain.com/public
>>   prefix = Public/
>>   separator = /
>>   subscriptions = no
>>   type = public
>> }
>> passdb {
>>   args = /etc/dovecot/dovecot-sql.conf.ext
>>   driver = sql
>> }
>> plugin {
>>   acl = vfile
>>   sieve = ~/.dovecot.sieve
>>   sieve_before = /var/mail/sieve/
>>   sieve_dir = ~/sieve
>> }
>> postmaster_address = postmaster at mydomain.com
>> protocols = " imap"
>> service auth {
>>   unix_listener /var/spool/postfix/private/auth {
>>     group = postfix
>>     mode = 0660
>>     user = postfix
>>   }
>>   unix_listener auth-userdb {
>>     group = vmail
>>     mode = 0660
>>     user = dovecot
>>   }
>> }
>> ssl_cert = </etc/ssl/srvcerts/mailcert-withintcas.cer
>> ssl_cipher_list = 
>>
EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:AES256-SHA256:AES256-SHA:RC4-SHA:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS
>> ssl_key = </etc/ssl/private/mailcert.pvk
>> userdb {
>>   args = /etc/dovecot/dovecot-sql.conf.ext
>>   driver = sql
>> }
>> protocol lda {
>>   info_log_path = /var/log/dovecot-lda.log
>>   log_path = /var/log/dovecot-lda-errors.log
>>   mail_plugins = acl sieve
>> }
>> protocol imap {
>>   mail_plugins = acl imap_acl
>> }
>
> /etc/dovecot/dovecot-sql.conf.ext:
>> driver = mysql
>> connect = host=127.0.0.1 dbname=dbname user=username password=password
>> default_pass_scheme = SHA512-CRYPT
>> password_query = SELECT email as user, password FROM virtual_users
WHERE
>> email='%u';
>> user_query = SELECT home FROM virtual_users WHERE email = '%u'
UNION SELECT
>> home FROM virtual_shared_mailboxes WHERE email = '%u'
The UserDB query does _not_ return mail, hence, does not override default 
mail_location, which does _not_ depend on HOME.
>
> Extract from /var/log/mail.log:
>> Mar 15 11:43:07 phoenix postfix/pickup[1404]: 3BA221FFD1: uid=0 
>> from=<sysadmin>
>> Mar 15 11:43:07 phoenix postfix/cleanup[4871]: 3BA221FFD1: 
>> message-id=<20140315104307.3BA221FFD1 at mail.mydomain.com>
>> Mar 15 11:43:07 phoenix postfix/qmgr[7691]: 3BA221FFD1: 
>> from=<sysadmin at mydomain.com>, size=316, nrcpt=1 (queue active)
>> Mar 15 11:43:07 phoenix dovecot: auth-worker: mysql(127.0.0.1):
Connected
>> to database mailserver
>> Mar 15 11:43:07 phoenix postfix/pipe[4875]: 3BA221FFD1: 
>> to=<office at mydomain.com>, relay=dovecot, delay=0.15, 
>> delays=0.05/0.03/0/0.07, dsn=2.0.0, status=sent (delivered via dovecot 
>> service)
>> Mar 15 11:43:07 phoenix postfix/qmgr[7691]: 3BA221FFD1: removed
>
> Extract from /var/log/dovecot-lda.log:
>> Mar 15 11:43:07 lda: Debug: Loading modules from directory: 
>> /usr/lib/dovecot/modules
>> Mar 15 11:43:07 lda: Debug: Module loaded: 
>> /usr/lib/dovecot/modules/lib01_acl_plugin.so
>> Mar 15 11:43:07 lda: Debug: Module loaded: 
>> /usr/lib/dovecot/modules/lib90_sieve_plugin.so
>> Mar 15 11:43:07 lda: Debug: auth input: office at mydomain.com 
>> home=/var/mail/mydomain.com/public/.office
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: Effective uid=1002,
>> gid=999, home=/var/mail/mydomain.com/public/.office
^^ This matches the UserDB query, but is not used by mail location.
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: No
acl_shared_dict
>> setting - shared mailbox listing is disabled
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: Namespace :
type=private,
>> prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes 
>> location=maildir:/var/mail/mydomain.com/office/Maildir
^^  This matches the default mail_location
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: maildir++: 
>> root=/var/mail/mydomain.com/office/Maildir, index=, control=, 
>> inbox=/var/mail/mydomain.com/office/Maildir, alt>> Mar 15
11:43:07 lda(office at mydomain.com): Debug: Namespace :
>> /var/mail/mydomain.com/office/Maildir doesn't exist yet, using
default
>> permissions
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: Namespace : Using 
>> permissions from /var/mail/mydomain.com/office/Maildir: mode=0700
gid=-1
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: initializing
backend
>> with data: vfile
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: acl username =
>> office at mydomain.com
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: owner = 1
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl vfile: Global
ACL
>> directory: (none)
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: Namespace :
type=public,
>> prefix=Public/, sep=/, inbox=no, hidden=no, list=children,
subscriptions=no
>> location=maildir:/var/mail/mydomain.com/public
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: maildir++: 
>> root=/var/mail/mydomain.com/public, index=, control=, inbox=,
alt>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl:
initializing backend
>> with data: vfile
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: acl username =
>> office at mydomain.com
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: owner = 0
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl vfile: Global
ACL
>> directory: (none)
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl: No
acl_shared_dict
>> setting - shared mailbox listing is disabled
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: none: root=,
index=,
>> control=, inbox=, alt>> Mar 15 11:43:07 lda(office at
mydomain.com): Debug: Destination address:
>> office at mydomain.com (source: user at hostname)
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: include: 
>> sieve_global_dir is not set; it is currently not possible to include 
>> `:global' scripts.
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: using sieve
path
>> for user's script:
/var/mail/mydomain.com/public/.office/.dovecot.sieve
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: opening
script
>> /var/mail/mydomain.com/public/.office/.dovecot.sieve
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: script
binary
>> /var/mail/mydomain.com/public/.office/.dovecot.svbin successfully
loaded
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: binary save:
not
>> saving binary /var/mail/mydomain.com/public/.office/.dovecot.svbin,
because
>> it is already stored
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: sieve: executing
script
>> from /var/mail/mydomain.com/public/.office/.dovecot.svbin
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl vfile: reading
file
>> /var/mail/mydomain.com/public/.office/dovecot-acl
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl vfile: file 
>> /var/mail/mydomain.com/public/dovecot-acl not found
>> Mar 15 11:43:07 lda(office at mydomain.com): Debug: acl vfile: file 
>> /var/mail/mydomain.com/office/Maildir/dovecot-acl not found
>> Mar 15 11:43:07 lda(office at mydomain.com): Info: sieve: 
>> msgid=<20140315104307.3BA221FFD1 at mail.mydomain.com>: stored
mail into
>> mailbox 'INBOX'
>
> Extract from /var/mail/mydomain.com/public/.office/.dovecot.sieve.log:
>> sieve: info: started log at Mar 15 11:43:07.
>> error: msgid=<20140315104307.3BA221FFD1 at mail.mydomain.com>:
failed to store
>> into mailbox 'Public/office': Mailbox doesn't exist:
office.
>
> Listing of /var/mail/mydomain.com/public/.office:
>> $ sudo ls /var/mail/mydomain.com/public/.office -lA
>> total 56
>> drwxr-x--- 2 vmail vmail  4096 mar 14 17:14 cur
>> -rw-r--r-- 1 root  root     98 mar  9 18:05 dovecot-acl
>> -rw-r----- 1 vmail vmail 18432 mar 15 10:36 dovecot.index.cache
>> -rw-r----- 1 vmail vmail  1088 mar 15 10:36 dovecot.index.log
>> -rw-r--r-- 1 vmail vmail     0 mar 14 21:50 dovecot-shared
>> -rw-r--r-- 1 root  root     50 mar 15 11:42 .dovecot.sieve
>> -rw------- 1 vmail vmail   188 mar 15 11:43 .dovecot.sieve.log
>> -rw-r--r-- 1 vmail vmail   124 mar 15 11:42 .dovecot.svbin
>> -rw-r----- 1 vmail vmail    98 mar 14 17:13 dovecot-uidlist
>> drwxr-x--- 2 vmail vmail  4096 mar 14 16:25 new
>> drwxr-x--- 2 vmail vmail  4096 mar 15 08:48 tmp
>
> Contents of /var/mail/mydomain.com/public/.office/.dovecot.sieve:
>> require "fileinto";
>> fileinto "Public/office";
>
> ACL for the "office" shared mailbox:
>> $ sudo cat /var/mail/mydomain.com/public/.office/dovecot-acl
>> user=president at mydomain.com lrwstipe
>
> Transcript of an IMAP session listing all folders:
>> * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
IDLE
>> AUTH=PLAIN AUTH=LOGIN] IMAP server ready.
>> a01 LOGIN president at mydomain.com password
>> a01 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
>> IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND
UNSELECT
>> CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC 
>> ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS ACL
RIGHTS=texk]
>> Logged in
>> a02 LIST "" "*"
>> * LIST (\HasNoChildren) "/" "Infected Items"
>> * LIST (\HasNoChildren) "/" "Recycle Bin"
>> * LIST (\HasNoChildren) "/" "Spam"
>> * LIST (\HasNoChildren) "/" "Trash"
>> * LIST (\HasNoChildren) "/" "Drafts"
>> * LIST (\HasNoChildren) "/" "Sent Mail"
>> * LIST (\HasNoChildren) "/" "INBOX"
>> * LIST (\HasNoChildren) "/" "Public/office"
>> a02 OK List completed.
>> a03 LOGOUT
>> * BYE Logging out
>> a03 OK Logout completed.
>
- -- 
Steffen Kaiser
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On Wed, 19 Mar 2014, Steffen Kaiser wrote:
> IMHO, the behaviour matches your config.
If my assumption in my previous message is correct, you will have some 
options:

a) have UserDB return "mail",
b) make mail_location depend on home via ~
c) create a symlink default location -> public
d) forward office to some other user where you use
"fileinto Public/office"
e) ...

- -- 
Steffen Kaiser
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On Wed, 19 Mar 2014, Steffen Kaiser wrote:
> IMHO, the behaviour matches your config.
If my assumption in my previous message is correct, you will have some 
options:

a) have UserDB return "mail",
b) make mail_location depend on home via ~
c) create a symlink default location -> public
d) forward office to some other user where you use
"fileinto Public/office"
e) ...

- -- 
Steffen Kaiser
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