[ale] Porn filters

[Matthew Brown]

Sounds intersting...  I guess one would accomplish this with iptables
when the SMTP server is trying to connect to the client's SMTP server?
Or would you suggest doing it at the SMTP server side?

Has anyone tried something like this in iptables?

Best regards,
Matthew Brown, President
CorData, Inc.
O: (770) 795-0089
F: (404) 806-4855
E: matthew.brown at cordata.net


-----Original Message-----
From: ,,, [mailto:fultongr at greenie.frogspace.net] On Behalf Of Fulton
To: ale at ale.org
Green
Sent: Monday, October 07, 2002 10:59 AM
To: Matthew Brown
Cc: 'Atlanta Linux User Group (E-mail)'
Subject: Re: [ale] Porn filters


I've noticed (from personal experience) that MX.CompGen.com now blocks
incoming mail from servers that don't have matching forward and reverse
address lookups. That might block out a few legit servers (which should
probably be fixed anyway), but it will definitely take care of 80% of
all
spam (pr0n/pyramids/mortgages/health aids/etc.), with the other 20%
either
being easily-blocked professional spammers or easily-contacted legit
I[SP]Ps that happen to have a yet-to-be-discovered spammer . Your server
daemon could be set up to automatically send a nastygram to legit
addresses
not following the forward/reverse lookup paradigm.

On Mon, Oct 07, 2002 at 10:45:19AM -0400, Matthew Brown wrote:
> I have a client asking for some way to stop receiving all the porn
they
> are barraged with.  They want to filter stuff not so much on the web
> side, but also on the email side.  For some reason they get a ton of
> porn mail.
>  
> Beyond simply setting up email client rules and education, does anyone
> have a silver bullet?

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