is it possible - username aliases

[Wojciech Puchar]

>>
>> someone at somewhere.pl some-unix-account
>>
>> For this few users and have everything like it is now?
>
> put this before the passwd passdb...
>
> passdb {
>  driver = passwd-file
>  args = username_format=%Lu /path/to/some/passwd
>
> }
>
> then put this into the passwd file
>
> alias at user:::::::user=real.username at domain
>

thank you for help. exactly what i needed.

one more question.

Do i need to restart dovecot everytime i change this passwd-file?