Re: How to reject spam with embedded graphics
On Tue, 2007-03-13 at 19:02 -0700, Paul Johnson wrote:
> Michelle Konzack wrote in Article <[🔎] 20070313161632.GT2941@freenet.de> posted
> to gmane.linux.debian.user:
>
> > Am 2007-03-07 11:19:30, schrieb Chris Lale:
> >> There was some discussion on the list a while ago about how to deal with
> >> spam that has text as graphics embedded in it. There was disagreement
> >> about whether or not to use it to teach SpamAssassin. I have continued
> >> feeding this spam to SpamAssassin, but a large amount still gets through.
> >>
> >> Does anyone know of a way to deal with spam with embedded graphics? I
> >> cannot use greylisting on a home desktop machine.
> >>
> >> Any thoughts welcome.
> >
> > On SMTP level?
> >
> > You can test the incoming HEADER if it contain
> >
> > Content-Type:.*image/(gif|jpeg|pjpeg|png)
>
> Why do it this way when using spamassassin at SMTP time lets you reject the
> spam regardless of content at SMTP time instead of using heuristics that
> *will* come back to haunt you later?
It depends on whether or not that haunt bothers you.
--
greg, greg@gregfolkert.net
Novell's Directory Services is a competitive product to Microsoft's
Active Directory in much the same way that the Saturn V is a competitive
product to those dinky little model rockets that kids light off down at
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