On Mon, 25 Jul 2005, Mark Smith wrote: > From: Mark Smith <[EMAIL PROTECTED]> > To: [email protected] > Date: Mon, 25 Jul 2005 16:57:03 +0100 > Subject: [exim] Spammer tactics > > This may not be new to others, but it's something I've only > recently noticed. > > Zombie hosts are avoiding our per-host connection limits and > dictionary attack checks by simply disconnecting as soon as they > get a DENY, then immediately reconnecting and trying to send the > same message again. They do this around ten times in a row before > giving up. > > Anyone have any ideas how to combat this?
Have a look at the ratelimit stuff that Tony Finch put into exim-4.52. -- Dennis Davis, BUCS, University of Bath, Bath, BA2 7AY, UK [EMAIL PROTECTED] Phone: +44 1225 386101 -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
