[Dovecot] Dovecot's deliver trouble (problem solved, thanks!)

[Serge D]

   Hello!

  Thank you, Timo and the other people answered, for the right clue.
All the problems are solved!

Timo Sirainen wrote:
> On 5.1.2007, at 17.16, Serge D wrote:
>
>> Jan  3 10:40:37 serge deliver(serge at test.net): setuid(500) failed: 
>> Operation not permitted
> Configure Exim to start deliver with UID 500. I don't use Exim, so I 
> don't know how.
> ..
>> Return-path: <"testuser at test.net"@test.net>
> Since deliver isn't even started, this is probably also an Exim 
> configuration problem.
  - Serge.