On Wed, 24 Jan 2007 15:03:06 -0200 "Gustavo Feijó" <feijo.listas at gmail.com> wrote: > FEATURE(`dnsbl', `sbl.spamhaus.org', `"550 Mail from " Try replacing with 'zen.spamhaus.org'. Can't comment on the others. Are you only using RBLs for spam prevention? HTH, Dominic