On Sat, Apr 4, 2009 at 3:27 AM, Oguz Yilmaz <oguzyilmazl...@gmail.com> wrote:
> On my postfix mail server I have RBL definitions at > smtpd_client_restrictions phase. At the moment 2 of 4 rbl's waiting until > tcp timeout without an answer when I try with nslookup. It sounds like your dns recursor is having problems. Ensure that your recursor is a caching recursor, and that it's neither forwarding the zones, or that you're using a shared recursor. The latter could result in the recursor being temp-banned from doing too many lookups.
