Hi all,
On March 21st I noticed these entries in my mail log and I'm not able to
pinpoint the source of the trouble:
warning: x.x.x.x.b.barracudacentral.org: RBL lookup error: Host or
domain name not found. Name service error for
name=x.x.x.x.b.barracudacentral.org type=A: Host not found, try again
By that point I hadn't made any changes to the Postfix config in several
weeks (looked back through old mail logs and the entries were not there)
and Postfix had been restarted several times since then. Knowing that I
had to register the nameservers that my box uses through their website,
I looked back over their "How to Use" guide here:
http://www.barracudacentral.org/rbl/how-to-use
and found that they offer an easy test to make sure that DNS resolution
is working properly:
Command: host 2.0.0.127.b.barracudacentral.org
Result: 2.0.0.127.b.barracudacentral.org has address 127.0.0.2
I get the proper results, the zen.spamhaus.org entry I have is working
fine and I've seen no DNS resolution errors in the logs for other
daemons I run on the box so I'm somewhat at a loss. I also have no other
nameserver entries on my box aside from the two entries that are already
registerd with barracudacentral.org.
Is there anything obvious I can check?
Thank you for your time.
