[Mailman-Developers] dkim-signature headers
John W. Baxter
jwblist3 at olympus.net
Thu Feb 8 01:43:40 CET 2007
On 2/6/07 5:51 PM, "Bob Puff" <bob at nleaudio.com> wrote:
> If a bad DK isn't bad, then how is this supposed to help spam? I mean, if the
> mere presence of some signature in the headers will increase the likelihood of
> an email being delivered (or at least help it NOT be tagged as spam), surely
> the spammers will pick up on this, and the whole benefit lost.
They have. Much of the spam I see from the "new breed legitimate spammers"*
contains DKIM signatures. (I have to assume those verify OK, else why put
* "new breed legitimate spammers": That is, in the US, those who carefully
conform to CAN-SPAM as far as one can tell--one can't really tell whether
they "share" unsubscribed addresses with other spammers as likely new
victims without probing.
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