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What are the cheapest alternatives to Proofpoint for inbound email filtering that still offer strong protection against advanced phishing?

ChatGPTgpt-61 query10/31/2026
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The searches the AI actually ran for this prompt.

SEED QUERY
What are the cheapest alternatives to Proofpoint for inbound email filtering that still offer strong protection against advanced phishing?
1 real search · 1 real-search pass
2026 Proofpoint alternatives inbound email security pricing Microsoft Defender for Office 365 Plan 1 pricing Avanan IRONSCALES INKY SpamTitan BarracudaGoogle ↗
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Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.

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Searches and sources

ChatGPT1 real searches · gpt-6
2026 Proofpoint alternatives inbound email security pricing Microsoft Defender for Office 365 Plan 1 pricing Avanan IRONSCALES INKY SpamTitan Barracuda Google ↗
  1. Microsoft Defender for Office 365 · microsoft.com
  2. Microsoft Defender for Office 365 service description - Service Descriptions · learn.microsoft.com
  3. IRONSCALES Software Pricing, Alternatives & More 2026 · capterra.com
  4. Check Point Email Security Pricing 2026 · trustradius.com
  5. Email Security Software Pricing 2026: 16 Tools Compared · costbench.com
  6. Email Security for Small Business | From $5/user/mo - Barracuda Networks · barracuda.com
  7. Microsoft Defender for Office 365 · microsoft.com
  8. Pricing · ironscales.com
  9. IRONSCALES Pricing 2026 · capterra.com
  10. Avanan · emailsecurity.checkpoint.com
  11. Check Point Harmony Email Security · checkpoint.com
  12. 7 Best Email Security Software To Use In 2026 · clean.email
  13. SpamTitan · spamtitan.com
  14. Pricing Plans · barracuda.com
  15. Barracuda Email Protection · barracuda.com
  16. The Best Cloud Email Security Solutions · expertinsights.com
  17. Proofpoint Alternatives 2026: 8 Platforms Compared · cipherssecurity.com
  18. Sublime Security · sublime.security

Queries

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Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
2026 Proofpoint alternatives inbound email security pricing Microsoft Defender for Office 365 Plan 1 pricing Avanan IRONSCALES INKY SpamTitan Barracuda
OBSERVED
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