Dallman Ross wrote:
[...]
Hah! Have you tried looking at this list's headers?
I did mention "Most seem to be using RFC2919 headers (which are simple
to match -- all I've seen so far have at least one of List-Id: and
List-Unsubscribe:)", so this list is covered in the existing recipe.
That's been the good news: Most lists are using a fairly small set of
headers. I expected it to be a far more difficult task.
They all can be faked, of course. I have had some spam come
that is a very good fake of some known lists.
Good point. I'm not after spam detection, only list detection. Spam
detection is happening earlier in the process (spamassassin & bogofilter
in my case).
- Bob
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