can't forward mail in postfix

[tductho]

Hi all
please help me fix a problems about forward mail
I've setup a mail server according to " how to Virtual Users And Domains With Postfix, Courier And MySQL (Debian Etch)". But now I create a account mail in forwardings table. when I send mail to that mail then I can't receive mail forward.
I've check mail log but can't see any error .
anyone known to fix those problem please help me.
thanks so much

[falko]

So you've created a forward, but the mails are not being forwarded?
What do you see in your mail log when you send an email to that account?

[tductho]

I've fix this problem, Because I config wrong in file main.cf
thanks