postfix+dovecot and usernames different to e-mail addresses

[Benjamin]

Ok. The problem seems to be something different. I found out that even 
if I pass the real username (foo-example.com) to dovecot-lda, dovecot 
tells me

   Error: User initialization failed: Namespace 'INBOX.': Home directory 
not set for user. Can't expand ~/ for mail root dir in: ~/Maildir

Why does dovecot find the home when accessed via IMAP, but not when 
accessed via dovecot-lda?

Benjamin

On 06/09/2016 04:03 PM, Benjamin wrote:
> Thank you for this hint, but no, that does not work.
>
> Does Dovecot really use this user_filter when postfix passes mail using
> the dovecot-lda command?
>
> I now tried it with
>
>     user_filter = (&(objectClass=qmailUser)(|(uid=%u)(mail=%u)))
>
> and when I search with this filter in LDAP directly (using the
> recipients e-mail address as %u) it returns the wanted user.
>
> I also ensured, postfix passes the e-mail address as argument by playing
> around with master.cf, and it does. At the moment the dovecot line looks
> as follows:
>
>     dovecot      unix   -        n      n       -       -   pipe
>       flags=DRhu user=mail-data:mail-data
> argv=/usr/lib/dovecot/dovecot-lda -a ${recipient}
>
> Dovecot still tells me that it does not find the home directory for the
> user.
>
>
> Benjamin
>
>
> On 06/08/2016 10:45 PM, Wolfgang Rosenauer wrote:
>> On Wed, Jun 8, 2016 at 10:13 AM, Benjamin <dovecot at benjaminhubert.at>
>> wrote:
>>
>>>
>>> My dovecot-ldap configuration looks quite simple:
>>>
>>>   hosts = 192.168.0.1,192.168.0.2
>>>   dn = cn=mailadmin,dc=example,dc=com
>>>   dnpass = foo
>>>   auth_bind = yes
>>>   ldap_version = 3
>>>   base = ou=users,dc=example,dc=com
>>>   user_attrs = mailMessageStore=home
>>>   user_filter = (&(objectClass=qmailUser)(uid=%u))
>>>   pass_filter = (&(objectClass=qmailUser)(uid=%u))
>>>
>>> I think dovecot does not know that the username is not the e-mail
>>> address,
>>> but how can I tell him?
>>>
>>> Furthermore we have alternative addresses here, so for example there may
>>> be an e-mail address bar at example.com owned by foo-example.com who has
>>> foo at example.com as primary address.
>>>
>>
>> You need user_filter and pass_filter to recognize also the email
>> addresses
>> IMHO.
>>
>> Mine look like:
>> pass_filter = (&(objectClass=suseMailRecipient)(|(alias=%n)(uid=%n)))
>> user_filter = (&(objectClass=suseMailRecipient)(|(alias=%n)(uid=%n)))
>>
>> You have to adapt to your own ldap attributes and use the correct
>> variable
>> (%n) to match your usecase. My users can login (and receive mails) via
>> all
>> of their aliases, primary address (part of the alias set) or their
>> username.
>>
>> HTH,
>> Wolfgang
>>