Why does postfix only accept mail for 1 account?

Question

postfix

There is an account [email protected] and [email protected]
You can send mail from any account, but only [email protected] can receive it.
What configs should I send? I can throw everything in the archive or one by one on pastebin.
Postfix + dovecot bundle, no spam plugins.
iptables is disabled during setup.
I'm suffering for the second day. Google turned up nothing.

Answer 1

I found out that the mail does not go only to the webmaster, it goes to other accounts. Any suggestions?