dovecot - Jul 2020 - Namespace issues & duplicate maiboxes

Hello,

I am seeing duplicate mailboxes when I perform the ?doveadm mailbox list?
command?the output is as follows:

================
INBOX
INBOX.Drafts
INBOX.Trash
INBOX.Sent
INBOX.INBOX
INBOX.INBOX.Sent Messages
INBOX.INBOX.Drafts
INBOX.INBOX.Trash
INBOX.INBOX.Deleted Messages

================
Here is namespace config that seems to have caused the above duplicates.  Please
help me understand what I?m doing wrong here?and also, not sure if this is
relevant but the client is Apple Mail?

================
namespace inbox {
	type = private
	separator = .
	inbox = yes
	prefix = INBOX.
	mailbox Trash {
    		auto = subscribe
  	  	special_use = \Trash
	}
	mailbox Drafts {
		auto = subscribe
		special_use = \Drafts
	}
	mailbox Sent {
		auto = subscribe
		special_use = \Sent
	}
}

> On 17. Jul 2020, at 22.32, Antonio Leding <tech at leding.net> wrote:
> 
> Hello,
> 
> I am seeing duplicate mailboxes when I perform the ?doveadm mailbox list?
command?the output is as follows:
> 
> ================> 
> INBOX
> INBOX.Drafts
> INBOX.Trash
> INBOX.Sent
These are the folders that your configuration has autocreated for the user.
> INBOX.INBOX
> INBOX.INBOX.Sent Messages
> INBOX.INBOX.Drafts
> INBOX.INBOX.Trash
> INBOX.INBOX.Deleted Messages
These are the folders that your user has created by himself.
> 
> ================> 
> Here is namespace config that seems to have caused the above duplicates. 
Please help me understand what I?m doing wrong here?and also, not sure if this
is relevant but the client is Apple Mail?
When you connect to the imap port of your server, does the server CAPABILITY
advertise SPECIAL-USE support? Mail.App will create those folders if SPECIAL-USE
is not advertised and there was bugs at some point that stopped dovecot from
adding SPECIAL-USE to the CAPABILITY string even after special_use folders were
in config.

Sami

Hi Sami,

That appears to have helped.  Also, can I ask a huge favor?  Would you mind
validating my procedure to get rid of the duplicates:


(1) Copy messages from the duplicate to the proper folder: Deleted Messages
?> Trash, Sent Messages ?> Sent etc. (doveadm move)
(2) Verify message counts in the proper folders (doveadm mailbox status) 
(3) Clear out the duplicate mailbox (doveadm expunge)
(4) Delete the duplicate mailbox (doveadm mailbox delete)


I know this may seem pretty basic to you but this is my first time going through
all of these operations for this type of issue so I figured your review would be
beneficial.

As always, thank you so much for the help?



> On Jul 17, 2020, at 12:43 PM, Sami Ketola <sami.ketola at dovecot.fi>
wrote:
> 
> 
> 
>> On 17. Jul 2020, at 22.32, Antonio Leding <tech at leding.net>
wrote:
>> 
>> Hello,
>> 
>> I am seeing duplicate mailboxes when I perform the ?doveadm mailbox
list? command?the output is as follows:
>> 
>> ================>> 
>> INBOX
>> INBOX.Drafts
>> INBOX.Trash
>> INBOX.Sent
> 
> These are the folders that your configuration has autocreated for the user.
> 
>> INBOX.INBOX
>> INBOX.INBOX.Sent Messages
>> INBOX.INBOX.Drafts
>> INBOX.INBOX.Trash
>> INBOX.INBOX.Deleted Messages
> 
> These are the folders that your user has created by himself.
> 
>> 
>> ================>> 
>> Here is namespace config that seems to have caused the above
duplicates.  Please help me understand what I?m doing wrong here?and also, not
sure if this is relevant but the client is Apple Mail?
> 
> When you connect to the imap port of your server, does the server
CAPABILITY advertise SPECIAL-USE support? Mail.App will create those folders if
SPECIAL-USE is not advertised and there was bugs at some point that stopped
dovecot from adding SPECIAL-USE to the CAPABILITY string even after special_use
folders were in config.
> 
> Sami
>