Re: How to reject spam with embedded graphics
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?
Reply to: