RE: email gateway (transparent)

["Filip Maertens" <fmt () ascure com>]

Consider installing a Linux/BSD distribution running postfix, amavisd,
spamassassin and open clamd or commercial AV software (e.g. sophos,
[insert your flavor here], ...

Interesting reads:

 - http://lawmonkey.org/anti-spam.html (got me all the way)
 - http://ezine.daemonnews.org/200309/postfix-spamassassin.html (postfix
and spamassassin)
 - http://ezine.daemonnews.org/200212/sophos-amavis.html (amavisd and
sophos)
 - http://jessen.ch/articles/spamassassin-and-postfix/config
 - http://clamav.elektrapro.com/ (open source AV project)


However you want to stick to an open source solution, be aware that
there is very little chance you'll be getting a "zero configuration" GUI
popping up ;-) Last time I installed/maintained this, I spent a couple
of hours at the command line. But once it's running... It remains stable
and -very- effective in blocking spam and virusses. 

Using a "defense in depth" angle will make you think about adding a
second layer in fighting off spam and virusses. That's perhaps why you'd
want to build an mta/relay using open source solutions (as described
above) and a second one (internal mail server) running commercial tools
(e.g. GFI software, Mailmarshal, Spamkiller, Symantec, ...). 

This is a quite common practice and depends greatly how heavily your
enterprise relies on e-mail, takes this serious and is willing to
invest.



Good luck,

Fil

> -----Oorspronkelijk bericht-----
> Van: ibnmaja al-andlusi [mailto:fedorian68 () yahoo co uk] 
> Verzonden: zaterdag 8 november 2003 20:15
> Aan: security-basics () securityfocus com
> Onderwerp: email gateway (transparent)
>
>
> hello everyone,
>
> I would like to know the feasiability of implementing
> a transparent email gateway to catch virues, and spam
> between the network, and the firewall?
>
> is there such a thing that has zero configuration, any 
> hints/howtos would be much apperciated, I would rather stick 
> to an open source solution based on linux
>
> TIA
>
> W.A.
>
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Forum Systems PRESIDIO: PGP / XML GATEWAY APPLIANCE
The Presidio integrates PGP data encryption and XML Web Services security to
simplify the management and deployment of PGP and reduce overall PGP costs
by up to 80%.
FREE WHITEPAPER & 30 Day Trial -
http://www.securityfocus.com/sponsor/ForumSystems_security-basics_031027
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