[SA-exim] Teergrubing (stalling SMTP sessions )

[Marc MERLIN]

On Sat, Jul 13, 2002 at 01:56:01PM -0500, Robert Strickler wrote:
> http://www.iks-jena.de/mitarb/lutz/usenet/teergrube.en.html
> 
> This looks like a better approach than currently implemented.
> 
> In addition  to the per-line  delay discussed, a  smaller(?) per/character
> delay could  be used.  You might  even feed them Project  Gutenberg public
> domain works  like the entire text  of "The Count of  Monte Cristo" (maybe
> even in the  original French?), or "War an Peace"  in the original Russian
> in an effort to educate the schmucks.

It won't really work  in our case: we only know that the  message is SPAM at
the end  of the  SMTP session,  so it's too  late to  slow the  sender down,
except by not returning OK and optionally returning DEFER very late.

Marc
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