Postfleet
Parses, classifies, extracts structured data from inbound emails, and screens for prompt injection before an AI agent reads them.
Launch screenshots from Product Hunt, Jul 2026
Postfleet is an email infrastructure API that parses, classifies, extracts structured data from inbound emails, and screens for prompt injection before an AI agent processes them. It targets developers, operations, and IT teams at B2B companies of all sizes, including startups and enterprises. The service is delivered as a hosted API with MCP support, offering a free tier and a dashboard for inspection.
Key features
- Signed webhooks with idempotent ingest
- SPF, DKIM, DMARC authentication results
- HTML to text cleaning
- Hidden text and zero-width character removal
- Virus scanning with fail-closed quarantine
- Spam gate with layered classifier
- Prompt injection scan before extraction
- Typed JSON extraction with confidence score
- Sanitization report for every message
- Dashboard with raw-vs-comprehended comparison