Michael Scheidell wrote: [..]
Sounds interesting, any idea what kind of a load it puts on system/network to do the os fingerprinting?
Until now I cannot see any significant additional load on the system. Okay its weekend any very little mails are processed.
I'll keep you updated when something pops up here.
I suppose one would NEVER want an email directly from a windows workstation (or an Amiga). This would be good to fight against all those zombies.
The difficulty is to distinguish between windows servers and windows clients. With the later I agree.
Maybe a additional measure would be greylisting upon OS? But AFAIK there is such software available for that (until now)
I assume a xp firewall isn't an issue, since if they were behind a firewall, chances are they wouldn't have been hacked.
In future I expect that more and more spam will be sent trough "legal" smtp gateways which are configured on the zombies mailclient.
rgds, Luc ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ AMaViS-user mailing list AMaViS-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
