GreatHorn vs Proofpoint: Email Security Comparison (2026)
An independent side-by-side comparison of GreatHorn 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.
Proofpoint leads overall — 67% cited vs GreatHorn 0% across 60 probes.
ChatGPT
GreatHorn
0 / 6 probes
0%
InvisibleProofpointLeads
5 / 6 probes
83%
ExcellentPerplexity
GreatHorn
0 / 6 probes
0%
InvisibleProofpointLeads
4 / 6 probes
67%
ExcellentGemini
GreatHorn
0 / 6 probes
0%
InvisibleProofpointLeads
5 / 6 probes
83%
ExcellentClaude
GreatHorn
0 / 6 probes
0%
InvisibleProofpointLeads
5 / 6 probes
83%
ExcellentCopilot
GreatHorn
0 / 6 probes
0%
InvisibleProofpointLeads
1 / 6 probes
17%
AverageScale:NoneLowFairStrongExcellent
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Features
GreatHorn
Feature data is being indexed.
Proofpoint
Feature data is being indexed.
When to choose GreatHorn
Choose GreatHorn if your team prioritizes its strengths over Proofpoint's. Full guidance populates as GreatHorn's feature data is indexed.
When to choose Proofpoint
Choose Proofpoint if your team prioritizes its strengths over GreatHorn's. Full guidance populates as Proofpoint's feature data is indexed.