"unknown user - trying the next userdb" Info in log

[Stephan Bosch]

Op 30/01/2019 om 00:06 schreef James Brown via dovecot:
>
>> On 30 Jan 2019, at 9:24 am, Stephan Bosch <stephan at rename-it.nl> wrote:
>>
>>
>>
>> Op 29/01/2019 om 01:51 schreef James Brown via dovecot:
>>> I’ve set up a new mail server. Auth-worker is giving me this error all the time:
>>>
>>> auth-worker(11160): Info: passwd(sales at bordo.com.au <mailto:sales at bordo.com.au>,10.0.0.54,<YSFoAYHAGoLAqAEo>): unknown user  - trying the next userdb
>>>
>> That is not an error. As the "Info: " prefix indicates, this is an innocuous informational message.
>>
>> Regards,
>>
>> Stephan.
>>
> Thanks Stephan.
>
> I know it’s not a major thing, it’s just that it is every third line of my log.
>
> Ie I get the auth-worker unknown user, then successful imap-login, then the imap logout.
>
> So I’m just trying to figure out what is causing the auth-worker lookup failure so I can fix it. I did not have this in my old mail server, just the new one I’ve setup.
>
> Is it a database issue or a Dovecot config issue? If so where?

Ýou can enable auth_verbose and auth_debug to get an idea what Dovecot 
is doing. You should post your `dovecot -n` to get more help on this issue.

Regards,

Stephan.