[Spambayes] Re: Filter Based on Recognized Email ISPs - Bounce Back
Spam to Sending IP Address
TJLWBECGSGWU at spammotel.com
Mon Nov 15 01:19:23 CET 2004
On Sun, 14 Nov 2004 12:36:26 -0700, "The Webers" <weber201 at npgcable.com>
>Couldn't a front end app could be developed that:
>1. - Contains a list of all recognized Email providers (Yahoo, MSN,
You mean something like http://www.senderbase.org ?
>and allow that Email to come through
>2. - provide option to filters on userid, subject, text.
Okay, there are plenty of filters that can do that. Most e-mail programs
have such features built in.
>3. - Email NOT passing that filter be rejected back to the sender but
>send a copy to a separate folder for user to review and add Email address to
>filter to allow future Email from that specific user to pass through.
>4. Email not passing the filter should be analyzed to find the sending
>IP and bounce it back to the route it came from. This might help getting a
>portion of the spam stopped or at least place less work on the recipient.
It doesn't make much sense to talk about bouncing to an IP address: bounces
are e-mails, sent to an e-mail address. The problem is, which e-mail
address? Bouncing to the claimed sender is of course a bad idea, because
spammers invariably forge this information. For more on this see
OTOH, http://www.spamcop.net sounds close to what you're after. It doesn't
send bounces; it sends complaints to the ISPs responsible for the offending
IP addresses. Repeat offenders are added to an IP blacklist available to
anyone through the bl.spamcop.net DNS zone.
Combine that with a filtering program that can be configured to refer to
bl.spamcop.net, spamassassin for instance, and you're set.
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