Address Assignment Question
John R. Levine
johnl at iecc.com
Mon Jun 20 17:20:18 CDT 2011
>> Hi. I'm the guy who wrote the CEAS paper on greylisting.
> URL ?
They don't have Google where you are, huh?
> You're right, greylisting on a large system may not be efficient as it
> won't block everything and will eat-up quite a lot of system
> ressources. But it's a good start once basic protocol-checks have
> already eliminated the 80% amount of bullshit sent from botnets.
Most of us use DNSBLs like the CBL or Spamhaus XBL to catch the botnet
mail. It's a lot easier to let them tune their protocol quirk checker
than to do it myself.
More information about the NANOG