https://docs.spamhaus.com/datasets/docs/source/40-real-world-usage/SpamAssassin/000-intro.html
Data Query Service using SpamAssassin — Spamhaus Technology Documentation 2.0 documentation
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https://docs.spamhaus.com/datasets/docs/source/40-real-world-usage/Rspamd/000-intro.html
Data Query Service using Rspamd — Spamhaus Technology Documentation 2.0 documentation
data query serviceusingrspamd
https://www.spamhaus.com/data-access/free-data-query-service/
Data access | Free Data Query Service | Spamhaus Technology
Access real-time DNS Blocklists (DNSBLs) free on behalf of Spamhaus Project to safely filter email. Available to small-scale users under the Terms of Use.
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