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Poor sending practices trigger a tidal wave of informational listings

ID: a088ec13-f0c3-519d-af75-fb32d7618a67

STIX ID: report--a088ec13-f0c3-519d-af75-fb32d7618a67

Feed Name: The Spamhaus Project

Date Published: 2022-08-16

Date Updated: 2026-04-30

Author: The Spamhaus Team

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This document explains Spamhaus's SBL "informational listings," which are non-blocking early warnings for IP addresses or ranges showing poor sending practices; they do not block mail but signal that issues should be corrected to avoid full SBL listing and subsequent mail delivery blocks.

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