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