Clive McDowell wrote:
> Folks,
>
> one of our mailhubs running exim 4.51 has found its way onto the ordb blacklist for open relaying. The headers of the relayed
> test message are as follows -
>
> Return-Path: <>
> X-Original-To: marvin@???
> Delivered-To: marvin@???
> Received: from ourhub [xxx.xxx.xxx.xxx]
> by groundzero.ordb.org (Postfix) with ESMTP id E4A5B2AAFA
> for <marvin@???>; Wed, 23 Nov 2005 17:31:33 +0000 (GMT)
> Received: from [217.157.38.18] (helo=ordb.org)
> by ourhub with esmtp (Exim 4.51)
> id 1EeySy-0000yd-MP
> for marvin@???; Wed, 23 Nov 2005 17:31:33 +0000
> From:
> To: marvin@???
> X-ORDB-Envelope-From:
> X-ORDB-Envelope-To: marvin@???
> Subject: ORDB.org check (0.6707320564041690.2829569746) ip=xxx.xxx.xxx.xxx
> Message-Id: <20051123173133.E4A5B2AAFA@???>
> Date: Wed, 23 Nov 2005 17:31:33 +0000 (GMT)
>
> Are there any circumstances under which such messages should be allowed through or can I simply refuse messages with blank from
> headers? If the latter is there a routine way of doing this with exim.
Wouldn't you be better off not relaying from anyone
apart from a specific lists of IP addresses under your control,
plus senders who AUTH ?
The route you are taking would only patch that specific test done
by ORDB.
- Jeremy
