[Web-cyradm] second mail server and relay problem

[Bartosz Jozwiak]

Hello,

My main mail server is postfix with web-cyradm. I have set up second postfix
with Horde/IMP.
Second postfix server is set up to relay all mail to main one.
And here problems starts...
While using Horde/IMP on second mail server and sending mail outside (not to
local users) everything works fine.
But when I want to send e-mail to local user (all local users are in main
server, second one has to relay all mails, in second there is no local
users)
it get rejected:

to=<bartosz.jozwiak.greentone.com at mx.cq-link.sr>, relay=mx.cq-link.sr[
66.178.37.7], delay=1, status=bounced (host mx.cq-link.sr[66.178.37.7] said:
550 <bartosz.jozwiak.greentone.com at mx.cq-link.sr
>: Recipient address rejected: User unknown in local recipient table (in
reply to RCPT TO command))
Apr 14 15:34:22 www5 postfix/qmgr[22465]: 6338E1542A1: removed

I have manage somehow to fix problem
"bartosz.jozwiak.greentone.com at mx.cq-link.sr" into
"bartosz.jozwiak at greentone.com"
but then I get other errors in log and still cannot send mail for local
users:

Apr 14 16:15:04 www5 postfix/pickup[22612]: F1CDC1542AB: uid=33
from=<bartosz.jozwiak.greentone.com at mx.cq-link.sr>
Apr 14 16:15:04 www5 postfix/cleanup[22684]: F1CDC1542AB:
message-id=<1081970103.0b86a0644392d at 66.178.36.40>
Apr 14 16:15:04 www5 postfix/qmgr[22613]: F1CDC1542AB:
from=<bartosz.jozwiak at greentone.com>, size=788, nrcpt=1 (queue active)
Apr 14 16:15:04 www5 postfix/local[22687]: warning: lookup bartek, NIS
domain rpbg.net, map mail.aliases: can't bind to serve
r on this domain
Apr 14 16:15:04 www5 postfix/local[22687]: F1CDC1542AB:
to=<bartek at cq-link.sr>, relay=local, delay=1, status=deferred (alias
database unavailable)

Can someone help me?
thanks in advance.

Bartek