On Mon, Jul 18, 2011 at 6:43 PM, Alex Marz alex@marz.ca wrote:
I realize this is slightly off topic, but I've noticed recently that I've been unable to preform RBL lookups using the the zen and sbl spamhaus RBL lists. Currently using Zimbra Collaboration Suite using CentOS 5 I'm seeing logs showing the following output.
[root@phantom ~]# cat /var/log/zimbra.log | grep spamhaus Jul 18 13:07:12 phantom postfix/smtpd[27001]: warning: 107.178.203.192.zen.spamhaus.org: RBL lookup error: Host or domain name not found. Name service error for name=107.178.203.192.zen.spamhaus.org type=A: Host not found, try again
Works for me (I'm running Bind locally to resolve names), though 1.ns.spamhaus.org times out.
I'd suggest flushing the cache or change the resolver/try with a different resolver.