Bug: Shared Mailbox - Case Sensitivity

[Aki Tuomi]

Can you provide doveconf -n?


---Aki TuomiDovecot oy
-------- Original message --------From: Leander Schäfer <info at netocean.de> Date: 01/10/2016  03:41  (GMT+02:00) To: Aki Tuomi <aki.tuomi at dovecot.fi>, Dovecot Mailing List <dovecot at dovecot.org>, Timo Sirainen <tss at iki.fi> Subject: Re: Bug: Shared Mailbox - Case Sensitivity 
Am I missing something, or might this be a bug as it seems to me?


Am 16.09.16 um 14:21 schrieb Leander Schäfer:
> Hi Aki,
>
>
> Thanks for your advice. Yes, I'm aware of this. Yet lowercasing should 
> be the default since Dovecot 2.1.x., isn't it? Yet I wouldn't know 
> where exactly to implement this %L, since the ACLs are set through 
> IMAP commands through the users mailclient like Thunderbird. So in 
> other words, the email address to whom the user want to grant ACLs 
> provided by the user's mailclient, has nothing to do with my auth 
> backend where e.g. %u => %Lu would apply. PLease correct me if I'm 
> wrong here.
>
>
> It clearly looks like a bug of the internal processing of the 
> "dovecot-acl-list" files. It simply lacks on a lowercase enforcement 
> in the code, like it already seems to do for the "dovecot-acl" file.
>
>
> Best regards
>
> Leander Schäfer
>
>
>
> Am 16.09.16 um 12:53 schrieb Aki Tuomi:
>>
>> On 16.09.2016 12:54, Leander Schäfer wrote:
>>> Hi,
>>>
>>> unfortunately I found a bug in Dovecot's ACL handling for shared
>>> mailboxes. It turns out Dovecot doesn't enforce lower casing the
>>> privileged username to whom the mailbox should be shared to. This
>>> results in a invalid configuration. Users get confused, since they
>>> passed on a valid email address in their ACL setup.
>>>
>>> /usr/local/www/default/mail/test at mydomain.localdomain/maildir/.Spam/dovecot-acl 
>>>
>>>
>>> user=leander at mydomain.localdomain eilrwts
>>> ^^ works
>>>
>>> /usr/local/www/default/mail/leander at mydomain.localdomain/maildir/dovecot-acl 
>>>
>>>
>>> user=test at mydomain.localdomain eilrwts
>>> ^^ works
>>>
>>> /usr/local/www/default/mail/test at mydomain.localdomain/maildir/.Drafts/dovecot-acl 
>>>
>>>
>>> user=Leander at MyDomain.LocalDomain eilrwts
>>> ^^ Doesn't work
>>>
>>> Best regards
>>> Leander Schäfer
>> Hi! Did you know you can use %Lu instead of %u to force lowercasing?
>>
>> Aki