Backscatter & challenge response
Hugo van der Kooij
hvdkooij at vanderkooij.org
Fri Apr 11 21:56:25 IST 2008
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Paul Houselander (SME) wrote:
| In common with lots of people I've seen a massive increase in the
| backscatter my domains are getting. I implemented watermarking which has
| helped a great deal.
| What I'm getting complaints about now are the mails coming in from
| challenge response systems, the mails don't come from postmaster, <>
| so the watermark does not get looked at.
| Just wondered if anyone had any bright ideals as to how to combat it?
| I've been looking at a selection I've been sent through this morning and
| there doesn't seem to be anything consistent about them and there not
| hitting many spamassasin rules.
I considere them hostile spam senders and blacklist them accordingly.
hvdkooij at vanderkooij.org http://hugo.vanderkooij.org/
PGP/GPG? Use: http://hugo.vanderkooij.org/0x58F19981.asc
>Q: Are you sure?
>>A: Because it reverses the logical flow of conversation.
>>>Q: Why is top posting frowned upon?
Bored? Click on http://spamornot.org/ and rate those images.
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