Find out which address or list got leaked

    A sudden spam wave usually has a single source — find it before you start filtering.

    JDCS
    By Jordan Dickson · Reviewed by CSG Security Engineers

    Updated June 2026 · 1 min read

    Most spam surges trace back to one breach, one signup, or one address sold on. Finding the source means you only have to act once — not on every spam message individually.

    Why aliases help here

    If you signed up to Site X with the alias `sitex@yourdomain`, and that alias is now drowning in spam, you know exactly where the leak came from.

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    Written by

    Jordan Dickson

    Founder, CyberSecurityGuides

    Founder of CyberSecurityGuides, writing practical, jargon-free guides that help everyday people recover from and protect against online attacks.

    Reviewed by CSG Security Engineers

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