[CentOS] Apparent BIND problem doing RBL lookups for Postfix

On Wed, 2010-04-14 at 17:36 -0700, listserv.traffic at sloop.net wrote:
> --
> Problem:
> Postfix is doing RBL lookups on zen.spamhaus.org.
> Everything goes along groovy - but then lookups start failing.
> 
Does your network interface show any abnormalities - dropped packets
etc? I assume you have no local ratelimiting (via iptables etc)?



John.

-- 
John Horne, University of Plymouth, UK
Tel: +44 (0)1752 587287    Fax: +44 (0)1752 587001