Interesting new spam technique - getting a lot more popular.

Wed Jun 14 19:39:30 UTC 2006

On Wed, 14 Jun 2006, Church, Chuck wrote:

>
> Since this technique requires a IPinIP or GRE tunnel, wouldn't blocking
> these two protocols to/from the hosts be sufficient?  Assuming of course
> the customer's host isn't using that normally.

sure, but those are probably just convenience things, what happens when
they setup an ssl tunnel? or http tunnel or ping tunnel?