An email infrastructure service that secures and comprehends inbound messages for AI agents.
Product memo
Postfleet provides email infrastructure specifically for AI agents, addressing the security risks of raw inboxes. It parses, classifies, and extracts inbound messages to a defined schema, while screening for prompt injection, malware, and spam. This ensures agents receive only safe, structured data, establishing a crucial trust boundary.
- For who
- AI agents and developers
- Solves what
- Securely processing and understanding inbound email for AI agents
- Prompt injection screening
- Email parsing and extraction
- Malware and spam filtering
In their own words
Email arrives comprehended.
Every inbound message is parsed, classified, extracted to your schema — and screened for prompt injection — before your agent reads a single word.
Operator & company
Operating model
- Business model
Saas
- Platform
API
- Audience
Developers
Product channels
Builder strategy
ProvenRadar analysis
- Strategy Type
- Niche Specialist
- Stage
- Vc Growth
- Effort
- Small Team
Commercial cues
- Model
- subscription
- Free tier
- Yes
- Trial
- Available
Pricing strategy
- • Free tier offers basic sanitization and limited comprehension
- • Metered comprehension (LLM extraction) drives paid.
About Postfleet Expand
Postfleet offers specialized email infrastructure designed for AI agents, ensuring that inbound messages are not only processed but also understood securely. The service parses emails, classifies their content, and extracts relevant information into a structured JSON format, all while rigorously screening for prompt injection vulnerabilities, malware, and spam.
This multi-stage process, from SPF/DKIM verification to deterministic sanitization and AI-driven analysis, establishes a critical trust boundary. By handling the complexities of email security and comprehension, Postfleet allows developers to integrate AI agents with confidence, knowing they will receive clean, actionable data without exposing their systems to attack surfaces.