FAQ Maintainers Mailing List
Re: [faq-maintainers] Spam sent to FAQ address

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From: Denis McKeon (DMckeon@swcp.com)
Date: Mon Oct 09 2000 - 01:30:38 CDT


In <Pine.BSI.4.10.10010082001460.20933-100000@malasada.lava.net>,
Baglady Lani <lani@lava.net> wrote:
>On Sun, 8 Oct 2000, Mike Holloway wrote:
>>Speaking of idiot's crap, does anyone have methods to share for avoiding
>>the harvesting of your address off your FAQ?
>
> 1. Procmail, Procmail, Procmail.

If you want to explore past the basic !^(To|Cc):.*me@myhost.example, see:

http://www.spambouncer.org/ The Spam Bouncer: a Procmail-Based Spam Filter

I recently replaced 5 years' worth of homebrew procmail scripts with
filtering based on spambouncer, and it was well worth the few hours it
took to set it up & tune it.

> 2. No email address at my Web site. You wanna send me feedback? You
>fill out an online form.

Anecdotal evidence suggests that posting with:

    From: blackhole@spamtrap.example
    Reply-To: me@myhost.example

will reduce spam from people using NNTP XOver to extract addresses from
>From headers only, while still allowing people using news user agents to
reply. OTOH, using a non-replayable From like:

    From: bogus@non-existent.invalid

seems to touch a number of traditional nerves, annoys respondents with
bounces, annoys postpersons with non-existent hosts & domains, and may
impact your net.karma adversely (and I risk a flame-fest by even
mentioning it - please help avert global cyber-warming.)

The sendmail trick of appending a tag to a user name might be useful -
but test your local mail server first, to see if mail to
user+faq@host.example gets delivered to user@host.example.
(and you'll still need procmail or a similar filter.)

-- 
Denis McKeon

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