{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9680780","patent":{"patent_number":"US-9680780","title":"Method for identifying spam mail and mail server using the same","assignee":null,"inventors":[],"filing_date":"2015-03-20T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["H04L"],"num_claims":18,"abstract":"A method for identifying a spam mail and a mail server using the method are provided. The method includes: when receiving a mail, retrieving a mail header of the mail; obtaining reference servers from a received line of the mail header; obtaining mail forwarding information of a mail forwarding host of each of the reference servers, and obtaining mail receiving information of a mail receiving host of each of the reference servers; comparing the mail forwarding information of an i-th reference server with the mail receiving information of an (i−1)-th reference server; and when the mail forwarding information of the i-th reference server is completely different from the mail receiving information of the (i−1)-th reference server, identifying the mail as the spam mail."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for identifying spam mail and mail server using the same","description":"A method for identifying a spam mail and a mail server using the method are provided. The method includes: when receiving a mail, retrieving a mail header of the mail; obtaining reference servers from","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9680780","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9680780","citation_suggestion":"Patentable. \"Method for identifying spam mail and mail server using the same\" (US-9680780). https://patentable.app/patents/US-9680780","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9680780","json":"https://patentable.app/api/llm-context/US-9680780","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:32:36.747Z"}