Spamhaus alternative — SignupDoggy comparison (2026)

Spamhaus alternative for indie SaaS teams. Pricing, accuracy, integration time, and which one fits a 2-50 person team. Honest comparison of Spamhaus and SignupDoggy.

Spamhaus alternative

Spamhaus is the authority on email abuse. Their blocklists (SBL, XBL, PBL, DBL) are used by every major email provider to filter spam.

NOT THE RIGHT TOOL FOR SIGNUP-TIME FRAUD FILTERING. Spamhaus is a data source — most fraud-detection APIs (including SignupDoggy) consume Spamhaus feeds behind the scenes.

If you're a signup form, use SignupDoggy — we already integrate Spamhaus data and 175 other data sources, and we present them as a simple risk score instead of a dozen separate lists.