> 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)? No rate limiting, and ifconfig isn't showing any errors/drops/overruns etc. -Greg