OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
 
Re: ***SPAM*** Re: Massive SPAM Increase {-2.6} {-2.6}

benfellraven.cybernude.org
Date: Mon Oct 16 2006 - 12:04:30 CDT

On Fri, 13 Oct 2006 22:52:12 -0500, Paul Schmehl wrote:
> --On October 13, 2006 10:46:34 PM -0400 Valdis.Kletnieksvt.edu wrote:
>
> I'm not sure what you mean by "split inbound and outbound", but any
> outbound MX host *should* be listed in DNS. You only list one -
> smtp.vt.edu. 192.82.162.213 is reversible, so it would get points for
> being honest about its IP/hostname, but it would lose points for not being
> listed in DNS as an MX. The overall score would determine if the mail was
> rejected, but I doubt that it would be.

Wrong. Completely wrong. Any UNIX-like box with qmail can be configured
to send mail out. My laptop, for example. But my domains only receive mail
at the servers designated as MX hosts in DNS.

Your idea that an outbound mail host should be listed in DNS indicates a
complete misunderstanding of the purpose of an MX record. These records
indicate to other MTAs where they should deliver mail *to*, not where they
should accept mail from.
>

--
David Benfell, LCP
benfellparts-unknown.org
---
Resume available at http://www.parts-unknown.org/

------------------------------------------------------------------------------
This List Sponsored by: Black Hat

Attend the Black Hat Briefings & Training USA, July 29-August 3 in Las Vegas.
World renowned security experts reveal tomorrow's threats today. Free of
vendor pitches, the Briefings are designed to be pragmatic regardless of your
security environment. Featuring 36 hands-on training courses and 10 conference
tracks, networking opportunities with over 2,500 delegates from 40+ nations.

http://www.blackhat.com
------------------------------------------------------------------------------