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

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
[] temporarily blocked using - see

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


Jesús Sanz de las Heras