[Dovecot] user unknown with deliver

[Nikolay Shopik]

On 16.07.2009 18:11, Rainer Frey wrote:
> Are the failing users actually authenticated, or maybe permitted by
> mynetworks? in this case ${sasl_username} would be empty.
>
> Other thought: how is the transport used? Perhaps postfix needs a valid
> recipient map for the delivery to this transport.

They are because I seen such records when user sends an email 
sasl_method=CRAM-MD5, sasl_username=shopik at inblock.ru

Transport is simple file:

bcc.inblock.ru  copy2sent

I'm doing blind carbon copy to bcc at bcc.inblock.ru, this is how copy2sent 
invoked.

Probably you are right, will go ahead and ask in postfix mailing list.