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Stow.How to Use AgentMail with Claude (Secure AI Email Automation Guide)
AI AgentsApril 7, 20265 min read

How to Use AgentMail with Claude (Secure AI Email Automation Guide)

AI agents sending emails sounds powerful—but it’s also risky if done wrong. Learn how to use AgentMail with Claude the right way.

Claude
AgentMail

AI agents sending emails sounds powerful—but it’s also risky if done wrong. Most setups either give AI too much control or provide no visibility into what’s happening.

This guide shows you how to use AgentMail with Claude the right way—using a secure, controlled execution model powered by Stow.

What Is AgentMail?

AgentMail is an AI email execution layer. It allows AI agents like Claude to draft emails, send messages, and manage communication workflows. But unlike traditional integrations, AgentMail does NOT give AI direct access to your email system.

"AgentMail operates through a controlled, policy-driven execution layer."

The Real Problem with AI Email Automation

Most AI email tools follow this model: AI → Email Provider (Direct Access). This creates serious issues:

No control over what AI can do
No audit trail for sent messages
No enforcement of permissions
High risk of prompt injection

The AgentMail + Stow Model

AgentMail works differently. It uses a three-layer architecture:

  • Claude → Intelligence (decision making)
  • Stow → Security + policy enforcement
  • AgentMail → Execution layer (email actions)
ClaudeStowAgentMail

Step-by-Step Setup

Step 1: Connect Claude to Stow

Before anything else, your agent must connect to Stow via MCP.

  1. Open Claude Desktop
  2. Go to Settings → Connectors
  3. Click Add Custom Connector
  4. Add your MCP URL: https://mcp.stowprotect.com

Step 2: Enable AgentMail in Stow

Inside your Stow dashboard, navigate to Connected Services, click Add New Service, and select AgentMail.

Step 3: Configure Permissions (Critical)

This is where you define exactly what your AI is allowed to do. These permissions are enforced by Stow, not the AI.

Recommended Safety Profile

Read messagesAllowed
Create draftsAllowed
Send emailsApproval Required
Delete messagesBlocked

Step 4: Run Your First Task

Try a prompt like: “Draft a follow-up email to a client about our last meeting”.

Stow evaluates the request. If approval is required, the request pauses while you approve it in your Stow dashboard. Otherwise, AgentMail executes the draft instantly.

Security Features

Risk Engine

Detects unusual behavior and blocks suspicious requests.

Policy Engine

Enforces user-defined permissions globally.

Baseline Binding

Locks agents to specific regions and IP addresses.

Zero Retention

No sensitive email content is ever stored.

Final Takeaway

AgentMail is not about letting AI send emails freely. It’s about giving AI the ability to act—without giving up control. With this stack, Claude provides the intelligence, AgentMail provides the execution, and Stow provides the security.

Build Secure Workflows

Ready to give your AI agent the ability to communicate safely?

S

Stow Security Team

April 7, 2026