How to Migrate from Fastmail to Proton Mail

    Move your email, contacts and calendars from Fastmail to Proton Mail's encrypted inbox — step by step.

    JDCS
    By Jordan Dickson · Reviewed by CSG Security Engineers

    Updated June 2026 · 1 min read

    Ready to move from Fastmail to Proton Mail? This guide will walk you through bringing your email, contacts and calendars across to your encrypted Proton account.

    Full walkthrough coming soon

    We''re putting together a step-by-step Fastmail to Proton Mail walkthrough. In the meantime, our universal Proton Mail migration guide covers the whole process end to end.
    Read the universal migration guide

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    JD

    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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