High Volume of Blacklist DNS Queries & Caching Configuration Inquiry

Oct 14, 2024
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We are receiving multiple blacklist query errors for "CUSTOM SCORES" in "Spam Detector" and we are also unable to query xen.spamhaus.org.
What can we do to reduce the number of queries? How can we store a local cache of queries with a longer retention time?

LOG:
pmg-smtp-filter[3109132]: WARNING: check: dns_block_rule RCVD_IN_ZEN_BLOCKED hit, creating /root/.spamassassin/dnsblock_zen.spamhaus.org (This means DNSBL blocked you due to too many queries. Set all affected rules score to 0, or use "dns_query_restriction deny zen.spamhaus.org" to disable queries)
pmg-smtp-filter[3109132]: WARNING: check: dns_block_rule RCVD_IN_VALIDITY_CERTIFIED_BLOCKED hit, creating /root/.spamassassin/dnsblock_sa-trusted.bondedsender.org (This means DNSBL blocked you due to too many queries. Set all affected rules score to 0, or use "dns_query_restriction deny sa-trusted.bondedsender.org" to disable queries)
pmg-smtp-filter[3109132]: WARNING: check: dns_block_rule RCVD_IN_VALIDITY_SAFE_BLOCKED hit, creating /root/.spamassassin/dnsblock_sa-accredit.habeas.com (This means DNSBL blocked you due to too many queries. Set all affected rules score to 0, or use "dns_query_restriction deny sa-accredit.habeas.com" to disable queries)
 

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