[BlueOnyx:03821] Re: YUM updates (2010-03-02)

[Darrell D. Mobley]

> From: blueonyx-bounces at blueonyx.it [mailto:blueonyx-bounces at blueonyx.it] 
> On Behalf Of Jeff Folk
> Sent: Wednesday, March 03, 2010 10:49 PM
> To: BlueOnyx General Mailing List
> Subject: [BlueOnyx:03791] Re: YUM updates (2010-03-02)
> 
> Interesting... I have zen listed first, as it catches the most for me... 
> 134 today.
> 
> What I use:
> FEATURE(dnsbl, `zen.spamhaus.org',,) 
> FEATURE(dnsbl, `dnsbl-1.uceprotect.net',,) 
> FEATURE(dnsbl, `dnsbl-2.uceprotect.net',,) 
> FEATURE(dnsbl, `dnsbl-3.uceprotect.net',,) 
> FEATURE(dnsbl, `bl.spamcop.net',,) 
> FEATURE(dnsbl, `b.barracudacentral.org',,) 
> FEATURE(dnsbl, `psbl.surriel.com',,)
> 
> I pay very close attention to my few users that tell me they have mail 
> delivery issues, but to be honest, they are very few. I have noticed that 
> the FaceBook mail servers have been getting listed on spamcop quite 
> regularly... But I'm not sure I count that as a false positive, if you 
> know what I mean. ;-D

I have zen listed first as well, but it doesn't do anything.  I tried
pinging spamhaus.org and got an unknown host.  How can a server use an RBL
if the host is unknown?