dovecot - Apr 2020 - Hierarchy separator recommendation?

The dot '.' will work, but I suggest to follow documentation here: 
https://wiki1.dovecot.org/Namespaces,

And it says:

A commonly used separator is '/'. It probably causes the least amount of
trouble with different IMAP clients

And I already had problems using '.' as a namespace separator.


On 2020-04-24 15:56, Sami Ketola wrote:
>
>> On 24. Apr 2020, at 15.27, Admin Beckspaced <admin at
beckspaced.com> wrote:
>>
>> Dear dovecot list,
>>
>> I'm using Maildir as mailbox format.
>>
>> Is there any recommendation for the namespace hierarchy separator?
>>
>> Currently I didn't set any. So it is the default of dot '.'
> this should work.
>
>> I'm switiching from a rather unknown IMAP Server called DBMail
(http://www.dbmail.org/)
>> Planning to synchronize the mailboxes via imapsync
(https://github.com/imapsync/imapsync)
>>
> Please be aware that imapsync does not migrate all data. It loses UID and
POP3UIDL information. If you plan to keep on using the same domain, then you
need to instruct your end users to invalidate the local caches on their devices.
> With most client applications means removing and readding account and
redownloading all emails. (or atleast headers)
>
>> Or can i always change this namespace hierarchy separator later on?
> This would cause similar caching problems on end user devices.
>
> Sami

Hello Edgaras,

what sort of troubles did you run into with the dot '.' as namespace 
separator?

thanks & greetings
Becki

Am 24.04.2020 um 15:32 schrieb Edgaras Luko?evi?ius:
> The dot '.' will work, but I suggest to follow documentation here: 
> https://wiki1.dovecot.org/Namespaces,
>
> And it says:
>
> A commonly used separator is '/'. It probably causes the least
amount
> of trouble with different IMAP clients
>
> And I already had problems using '.' as a namespace separator.
>
>
> On 2020-04-24 15:56, Sami Ketola wrote:
>>
>>> On 24. Apr 2020, at 15.27, Admin Beckspaced <admin at
beckspaced.com>
>>> wrote:
>>>
>>> Dear dovecot list,
>>>
>>> I'm using Maildir as mailbox format.
>>>
>>> Is there any recommendation for the namespace hierarchy separator?
>>>
>>> Currently I didn't set any. So it is the default of dot
'.'
>> this should work.
>>
>>> I'm switiching from a rather unknown IMAP Server called DBMail 
>>> (http://www.dbmail.org/)
>>> Planning to synchronize the mailboxes via imapsync 
>>> (https://github.com/imapsync/imapsync)
>>>
>> Please be aware that imapsync does not migrate all data. It loses UID 
>> and POP3UIDL information. If you plan to keep on using the same 
>> domain, then you need to instruct your end users to invalidate the 
>> local caches on their devices.
>> With most client applications means removing and readding account and 
>> redownloading all emails. (or atleast headers)
>>
>>> Or can i always change this namespace hierarchy separator later on?
>> This would cause similar caching problems on end user devices.
>>
>> Sami
>
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Hello Becki,

On 24.04.20 17:56, Admin Beckspaced wrote:
> what sort of troubles did you run into with the dot '.' as
namespace separator?
disadvantages could be:

- shared folders with dots in user names
- if you want to use dots in folder names

Whenever possible I use '/'.

Kind regards,
Markus