On Thu, 29 Apr 2010 05:53:07 -0600, "Joseph C. Lininger"
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I was wondering if anyone happens to know if zen.spamhaus.org is having
any sort of troubles? I've noticed an increase in the amount of spam
making it through my server, and I checked the mail logs to see about
the blacklists. The last time anything was blocked by spamhaus was April
27 in the evening. I usually have several spamhaus hits per day. Anyone
else noticing this or did I mess something up on my end and I just
haven't realized it yet? Thanks in advance for your help.
Spamhaus is known to block DNS servers who perform too many queries to
their DNS servers.
If you use your ISP DNS, it could be the issue. One easy thing to test:
nslookup <reverse_ip>.zen.spamhaus.org @<your dns server>
nslookup <reverse_ip>.zen.spamhaus.org @<another dns server>