Can't recive emails, sended by php function mail().

Hello! I have small problem: I can't recive messages, which was sended by mail().
I read this topic: http://www.iredmail.org/forum/topic1390 … -send.html , but I not found content-filter for 'pickup'.

==== Required information ====
- iRedMail version: 0.8.4
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: CentOS 6
- Related log if you're reporting an issue:
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