mailscanner as a front-end, help!

Jeff A. Earickson jaearick at
Mon Aug 27 18:52:59 IST 2007

Thanks to all, smf-sav works great.

On Mon, 27 Aug 2007, Ken A wrote:

> Date: Mon, 27 Aug 2007 10:07:14 -0500
> From: Ken A <ka at>
> Reply-To: MailScanner discussion <mailscanner at>
> To: MailScanner discussion <mailscanner at>
> Subject: Re: mailscanner as a front-end, help!
> Glenn Steen wrote:
>> On 27/08/07, Jeff A. Earickson <jaearick at> wrote:
>>> Gang,
>>> I slid my legacy MailScanner system back in front of my email
>>> appliance this morning to block spam.  I've got a problem with
>>> non-existent/dictionary attack addresses now.  They get sent
>>> on to the appliance, who doesn't know the address, thence back
>>> to the front-end, unroutable -- mail loop, too many hops.
>>> I need MailScanner/sendmail to kill non-existent addresses up
>>> front.  I found milter-ahead (costs euros).  Any other ideas?
>>> Virtusertables, like
>>> My setup: sendmail 8.14.1, MailScanner 4.62.9, SA and the other
>>> anti-spam additions.  sendmail running as "define(`MAIL_HUB'"
>>> setting to pass all (non-spam) email on to the appliance for
>>> local delivery.
>>> Jeff Earickson
>>> Colby College
>> smf-sav can do this, I gather... But depending on how tyhings are set,
>> it might not help (if the appliance doesn't correctly reject the
>> non-existant recipients...).
>> Cheers
> In the past, I used a script to generate a sendmail access list to do this, 
> with To:user at domain RELAY and a default TO:domain Err..'no such user' at the 
> bottom. That was replaced a while ago with smf-sav. Both methods work well.
> -- 
> Ken Anderson
> Pacific.Net
> -- 
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> mailscanner at
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