Great Circle Associates Firewalls
(November 1997)
 

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Subject: Re: spam
From: Pauline van Winsen - Uniq Professional Services <Pauline . van . Winsen @ uniq . com . au>
Date: Sun, 16 Nov 1997 21:59:43 +1100 (EST)
To: CLau @ ELDEC . com, carson @ tla . org
Cc: firewalls @ GreatCircle . COM

hi chris & carson,

> >>>>> "Chris" == Lau, Chris <CLau @
 ELDEC .
 com> writes:
> 
> Chris> Does anyone have a solution on how to stop spam email at the firewall
> Chris> level? We are using TIS Gauntlet. Some one out there is using our
> Chris> company name to send out spam email. We are getting many angry replies
> Chris> to us asking us to stop spamming. We were not the ones doing it.
> 
> Yep. Talk to your Gauntlet rep and yell at them to roll out the
> anti-relaying patches faster. We (MSDWD, They Who Cut My Paycheck) are
> probably going to fork over US$12k to TIS's consulting arm to get the fix
> faster. Latest I heard is it should get rolled into the commercial release
> 1H'98. The more folks who scream at TIS about this, the faster it will get
> done. It's all about perceived importance and marketing.

if you can't wait for a vendor fix, check out smtpd:

http://www.obtuse.com/smtpd.html

it's freely avail. a drop-in replacement for smap/smapd. runs in a chroot
environment, forks off the MTA of your choice for delivery (sound familiar?)
& has the most sophisticated anti-spam features i have found.

i replaced smap/smapd with smtpd about 3 months ago & have been very 
pleased with the results. no relaying & much, much less spam.

useful for ISP's who have to handle a large number of domains as it has 
the ability to match on the nameserver a domain is using. same feature
is also useful for dropping mail from known spamhauses.
smtpd can also defer mail from domainnames which do not resolve quite easily.

check out the docs for the full list of features.

hope this helps,
pauline

Pauline van Winsen                                   pauline @
 uniq .
 com .
 au
Uniq Professional Services Pty Ltd                       www.uniq.com.au
PO Box 70, Paddington, NSW 2021,                      (Sydney) Australia
Phone: +61-2-9380-6360      Fax: +61-2-9380-6416      Pager: 016 287 000
"The ultimate goal of most girls is usually marriage rather than a
continued career in the business world."
	       Choosing a Girl's Career - Book 8, Woman's World, circa 1964.

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