[Mimedefang] SMTP Tarpit

[listuser at numbnuts.net]

I believe you must have come into the conversation in the middle because
this would entirely defeat the goals I have in mind.  I don't want to
reject any spam connections on this spamtrap box which is what
BAD_RCPT_THROTTLE would do (which is why I use it on production MTAs).  I 
just need to figure out how to reject the known-to-not exist query that 
dictionary attack spamware makes to see if an MTA is a spamtrap.  That's 
the goal.

Justin

On Sat, 24 May 2003, Lucas Albers wrote:

> You can configure this in sendmail.
> Reject all mail send to all recipients where there are two or more invalid
> recipients, with the following line in sendmail.mc.
> 
> define(`confBAD_RCPT_THROTTLE',`2')dnl limit spammers from trolling for
> users on the system.
> 
> 
> 
> --Luke
> --Computer Science System Administrator
> --Montana State University Bozeman,MT
> 
> 
> 
> On Fri, 23 May 2003 listuser at numbnuts.net wrote:
> 
> > Unfortunately I still have the problem of what to do
> > with a spamware dictionary harvesting app checks the existence of a
> > username it knows shouldn't exist.  I can't think of any good ways of
> > doing that.
> 
> So reject the first 10 attempts, and thereafter, accept only 5% or so
> of the attempts to make the statistics seem realistic.
> 
> Regards,
> 
> David.
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