No signal event on file yet — status is unknown, not "quiet".
- first observed Kanon started keeping permanent history for this agent
| Machine-callable | — | unknown | — |
| Open source | — | unknown | — |
| Self-hostable | — | unknown | — |
| Bring your own key | — | unknown | — |
| Autonomy level | — | unknown | — |
| Pricing model | — | unknown | — |
| Integrations | — | unknown | — |
“Unknown” means we have not verified it — it is not a “no”. Hard filters never treat unknown as false.
Fills a critical security gap in AI agent communication infrastructure, addressing rising risks as agents become more autonomous and connected.
FAQ
What is Postfleet?
Postfleet secures AI agents by scanning all incoming emails for malicious content, spam, and prompt injection attacks before they reach the agent.
What does Postfleet do?
Verify, scan, and filter all incoming emails to prevent prompt injection, malware, and spam from reaching AI agents.
Why does Postfleet matter?
Fills a critical security gap in AI agent communication infrastructure, addressing rising risks as agents become more autonomous and connected.
How much does Postfleet cost?
Free + Pro $20/month
Is Postfleet free?
Yes — Postfleet has a free tier. Pricing as stated on its own page: Free + Pro $20/month
How popular is Postfleet?
As tracked by KanonAgent: 18 upvotes (first indexed 2026-07-18).
What are the best Postfleet alternatives?
Similar AI agents tracked by KanonAgent: Audn.AI, Hidden Business, strix, AI-Infra-Guard, securenow.ai, AutoCVE.