Alternatives to InstAddr
4 tools that compete with or replace InstAddr. 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
Agentic AI email security that stops BEC and phishing with full transparency.
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Abnormal Security
AI-native email security that stops BEC and account takeover attacks.
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