Re: [exim] Spam with IP like HELO

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Author: Todd Lyons
Date:  
To: Gregg Lain
CC: exim-users
Subject: Re: [exim] Spam with IP like HELO
On Tue, Feb 24, 2009 at 7:30 PM, Gregg Lain <gregg@???> wrote:
> drop
>   condition  = ${if and {{match {$sender_helo_name}{\N^\[(.+)\]$\N}}{isip4
> {$1}}}{true}{false}}
>   message     = Access denied - IP based HELO not allowed. (violates RFC2821
> 4.1.3)


Also note that if you're going to run this in production, you'll want to add:
!authenticated = *

Because some smtp auth clients present themselves as [IP.ADD.RE.SS].

Lovely...
-- 
Regards...      Todd
All truth passes through three stages. First, it is ridiculed. Second,
it is violently opposed. Third, it is accepted as being self-evident.