Re: [anti-spam-wg] About DNSBLs vs greylisting - Was: Steve Linford and Spamhaus Internet Terrorists

  • From: Jesus Sanz de las Heras <jesus.heras@localhost
  • Date: Mon, 21 Aug 2006 16:40:16 +0200
  • Organization: Red.es/RedIRIS



Using greylisting alone will be soon almost unuseful.
Maybe, but it's stopping a lot of junk for us :)


DNSBL too block a lot of spam. Which could be the difference of using greylisting and DNSBL returning code errors "450 Service temporary unavailable" ??.

 xxx@localhost (reason: 450 Service temporarily unavailable; Client host
[206.46.170.173] temporarily blocked using bl.spamcop.net - see
http://www.spamcop.net/bl.shtml?206.46.170.173

It's a soft way to use DNSbl without collateral damage.

Regards


--
Jesús Sanz de las Heras
RedIRIS