Alternatives to Proton Mail
4 tools that compete with or replace Proton Mail. Ranked by direct product-type match — not generic category overlap.
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Tessian
AI email security & DLP, now integrated into Proofpoint Core Email Protection.
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Sublime Security
AI-driven email security for advanced threat detection with low false positives.
PaidTry
Abnormal Security
AI-native email security that stops BEC and account takeover attacks.
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