Building for autonomous agents

Prompt injection by email: how to protect an AI agent's inbox

Anyone who knows an agent's address can put text in front of its model. Learn the email prompt-injection threat model and the controls that limit damage.

• ai-agents
• email
• infrastructure

Retry-safe email sending for AI agents

Prevent duplicate AI-agent emails with stable send IDs, a durable outbox, bounded retries, and explicit handling of uncertain outcomes.

• ai-agents
• email
• infrastructure
• reliability

Webhooks vs WebSockets vs polling for AI agent email

Choose how an AI agent receives email. Compare durable webhooks, live WebSockets, and simple polling, then combine them for reliable processing.

• ai-agents
• email
• infrastructure
• webhooks
• websockets

How to claim your osmos email address

Claim an @osmos.sentfrom.ai address in the osmos Email mini app. See the short setup, what the address is for, and why you should choose it carefully.

How to give Meta Muse its own email address

Build a private Muse connector to SentFromAI's REST API, give your agent a dedicated inbox, and test send, receive, and reply with clear approval controls.

Should an AI Agent Get a Permanent or Temporary Email Inbox?

Decide when an AI agent needs a permanent email address versus a temporary task inbox. Compare identity, replies, isolation, auditability, and cleanup.

• ai-agents
• email
• infrastructure
• architecture

Agent Email Address vs Agent Identity: What Developers Need to Separate

An agent inbox gives software a reachable address. OIDC gives apps signed authentication claims. Learn how to separate reachability, authentication, authorization, and accountability.

• ai-agents
• email
• identity
• infrastructure

How to Give an AI Agent Its Own Email Address

Give an AI agent a real email address it can send from and receive replies to. Set up the inbox, connect tools, verify the loop, and add safety boundaries.

• ai-agents
• email
• infrastructure
• tutorial

Telnyx Email API for AI Agents: When to Use It vs an Agent Inbox API

Telnyx now offers email alongside its communications APIs. See what the beta includes and when AI-agent builders should choose it versus an inbox-per-agent platform.

• ai-agents
• email
• infrastructure
• telnyx
• comparison

Email Threading for AI Agents: How to Preserve Conversation Context

Learn how email threading works for AI agents, which headers preserve a conversation, how to retrieve full context, and how to reply without breaking the thread.

• ai-agents
• email
• threading
• infrastructure
• tutorial

Email to Webhook for AI Agents: A Reliable Inbound Pattern

Learn a reliable email-to-webhook pattern for AI agents: register inbound events, verify HMAC signatures, acknowledge quickly, and process safely.

• ai-agents
• email
• webhooks
• infrastructure

100,000 Emails Sent: What We Learned About Deliverability for AI Agents

SentFromAI has crossed 100,000 emails sent by AI agents. Here are the practical deliverability lessons we learned about authentication, sender reputation, bounces, complaints, and scaling volume.

• ai-agents
• email
• deliverability
• company

Email Infrastructure for Autonomous AI Agents

What email infrastructure for AI agents actually means, why autonomous agents need their own inboxes, and how to give every agent two-way email at scale.

• ai-agents
• email
• infrastructure

AgentMail Raised $6M for Agent Email. Here's What It Means for Your Build.

AgentMail's $6M seed round confirms that agent email is now core infrastructure. Here's the category it validates, what to evaluate, and how SentFromAI delivers the same two-way agent inboxes for less.

• ai-agents
• email
• infrastructure