New subject: Issue sharing folders with Thunderbird

28 Aug 2018


      Hi Aki, they are.
...

The permissions for the file are:
root@dal-notify-01 Maildir]# ls -la /var/lib/dovecot/db/shared-mailboxes.db
-rw-rw-r--. 1 operations sharedusers 197 Aug 26 20:33 /var/lib/dovecot/db/shared-mailboxes.db
Users I'm testing with are part of the sharedusers group in /etc/group

The dir /var/lib/dovecot/db has this for permissions:
drwsrwsrwx.  2 root    sharedusers   33 Aug 27 21:12 db
the user operations is a member of “sharedusers” in /etc/group.  I even chmod’ed the permissions after to rw for global and I get the same error/result.
The file does appear to get written to.  For example, lets say user u2.name creates a folder called “starbucks” and uses the IMAP commands to share it out to user operations.  It seems to write to the acl_shared_dict file in /var/lib/dovecot/db/shared-mailboxes.db with an entry like
...
shared/shared-boxes/user/u2.name/operations
1
And it writes to the ~/Maildir/.starbucks/dovecot-acl file for u2.user with an entry like:
user=operations lrw
So it appears to be working.  However, if I log into Thunderbird with the user operations account and go to subscribe, I do not see “starbucks” in the list of available folders.  And I still get the nfs_flush_chown error.
Is there anything else I can be doing with the file/dir permissions?
Thanks.
...
On Aug 27, 2018, at 10:50 AM, Aki Tuomi aki.tuomi@dovecot.fi wrote:
acl_shared_dict file & folder must be readwritable by user performing the sharing as stated in wiki.
https://wiki.dovecot.org/SharedMailboxes/Shared
Aki Tuomi
Dovecot oy
-------- Original message --------
From: Jason Perry jason.perry@dtainc.us
Date: 27/08/2018 17:01 (GMT+02:00)
To: dovecot@dovecot.org
Subject: Issue sharing folders with Thunderbird
Trying to share folder "JasonAlerts" within mailbox operations to user u1.name
Issues:

Shared mailboxes do not appear under subscriptions in Thunderbird for another user
When I try to set permissions via IMAP commands I get in /var/log/dovecot.log
Aug 26 20:33:24 imap(operations): Error: nfs_flush_chown_uid: chown(/var/lib/dovecot/db) failed: Permission denied
The permissions for the file are:
root@dal-notify-01 Maildir]# ls -la /var/lib/dovecot/db/shared-mailboxes.db
-rw-rw-r--. 1 operations sharedusers 197 Aug 26 20:33 /var/lib/dovecot/db/shared-mailboxes.db
Users I'm testing with are part of the sharedusers group in /etc/group
IMAP commands DO write to the file:
[root@dal-notify-01 Maildir]# cat /var/lib/dovecot/db/shared-mailboxes.db
shared/shared-boxes/user/u1.name/u2.name
1
shared/shared-boxes/user/operations/u2.name
1
shared/shared-boxes/user/u1.name/operations
1
shared/shared-boxes/user/u1.name/operations
1
It will also write to the user's /home/operations/Maildir/.JasonAlert/dovecot-acl file
user=u1.name ilrw

However if I got into Thunderbird and try to subscribe, none of the shared folders are listed.  Can anyone help??  Thanks!!
Dovecot version = 2.2.10
dovecot -n
[root@server]# dovecot -n
# 2.2.10: /etc/dovecot/dovecot.conf
# OS: Linux 3.10.0-693.17.1.el7.x86_64 x86_64 CentOS Linux release 7.4.1708 (Core)
first_valid_uid = 100
listen = *
log_path = /var/log/dovecot.log
mail_debug = yes
mail_location = maildir:~/Maildir
mail_plugins = acl
mail_privileged_group = mail
mbox_write_locks = fcntl
namespace Private {
hidden = no
inbox = no
list = no
location =
prefix = Private/
separator = /
type = private
}
namespace Public {
hidden = no
inbox = no
list = no
location = maildir:/var/mail/public
prefix = Public/
separator = /
subscriptions = yes
type = public
}
namespace Shared {
hidden = no
inbox = no
list = yes
location = maildir:/var/mail/%u:INDEXPVT=~/Maildir/%u
prefix = shared/%u/
separator = /
subscriptions = yes
type = shared
}
namespace inbox {
inbox = yes
location =
mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
special_use = \Junk
}
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
special_use = \Trash
}
prefix =
separator = /
}
passdb {
driver = pam
}
passdb {
driver = pam
}
plugin {
acl = vfile
acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db file:///var/lib/dovecot/db/shared-mailboxes.db
}
protocols = imap
ssl_cert =

Re: Issue sharing folders with Thunderbird

Jason Perry

https://wiki.dovecot.org/SharedMailboxes/Shared

Aki Tuomi

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