Mimecast vs Proofpoint: Email Security Comparison (2026)
An independent side-by-side comparison of Mimecast and Proofpoint for email security buyers — pricing, features, integrations, and how often each is cited by major AI engines.
AI Citation Scorecard
How often each is cited by major AI engines when buyers ask email security questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Features
Feature data is being indexed.
Feature data is being indexed.
When to choose Mimecast
Choose Mimecast if your team prioritizes its strengths over Proofpoint's. Full guidance populates as Mimecast's feature data is indexed.
When to choose Proofpoint
Choose Proofpoint if your team prioritizes its strengths over Mimecast's. Full guidance populates as Proofpoint's feature data is indexed.
AI visibility profiles
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Get the full report by email: every email security buyer question we ask, which engines name you, and who gets named instead.
mimecast.com
proofpoint.com