Re: [Exim] Re: Avoiding SPAM

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Author: Marc Haber
Date:  
To: exim-users
Subject: Re: [Exim] Re: Avoiding SPAM
On Tue, 5 Mar 2002 01:47:30 +0800, Suresh Ramasubramanian
<mallet@???> wrote:
>Carry out regular scans on your customers (for port 25, and also other
>rubbish like open SOCKS / HTTP-CONNECT proxies, security holes etc ... all of
>which make you liable to be relayed through)
>
>Block port 25 outbound on all customer machines initially - forcing them to
>smarthost through a (heavily filtered) smart host mailserver ... run DCC
>(http://www.rhyolite.com/dcc/ or something on this)


Both of these measures will result in an immediate decline in user
base, at least in Germany. There are major cultural problems here when
you try to sell internet access with the restrictions outlined above.

Greetings
Marc

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