Topic: inbound fake mail protection

==== Required information ====
- iRedMail version: 0.8
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: Debian Squeeze
- Related log if you're reporting an issue:

I hv been receiving fake emails which has fake from address under my domain.
Originating as if from my domain.
And fake dkim signature.
Here below the headers of received email.
My domain is mydomain.com.

My mailserver does not verify X-Original-Helo name with reverse IP lookup.
FAKE: Received: from inbound.efax.com (unknown []) 

is there a protection setting at iRedMail ???

X-Original-Helo: inbound.efax.com (iRedMail: http://www.iredmail.org/)
Received: from inbound.efax.com (unknown [])
    by myiredmail.mydomain.com (Postfix) with ESMTP id DDEA4B7E1
    for <me@mydomain.com>; Fri, 23 Nov 2012 18:25:24 +0700 (ICT)
Received: from VOICE.mydomain.com ( by mydomain.com ( with Microsoft SMTP Server (TLS) id D4V3OQB8; Fri, 23 Nov 2012 14:55:14 +0330
Received: from VOICEMAIL.mydomain.com ( by smtp.mydomain.com ( with Microsoft SMTP Server id XV98LWJJ; Fri, 23 Nov 2012 14:55:14 +0330