crm_send_email

Send an email to a contact. Supports HTML body, templates, attachments, CC/BCC, threading, and scheduling.

SERVER0nmcp SOURCE0nmcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-0nork-0nmcp/crm-send-email.md

WHAT IT DOES

What crm_send_email does on 0nmcp

AI agents use crm_send_email to create or update resources in 0nmcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 0nmcp environment.

RISK

Why crm_send_email is rated Medium

The tool modifies system state by creating email records and dispatching messages to external recipients. While not destructive (emails can be recalled/deleted in most systems) or financial, it qualifies as Write because it irreversibly sends communication that may have business or personal consequences.

From the tool's definition Tool performs 'Send an email to a contact' with support for composing and scheduling messages. This creates new communication records and delivers data externally, constituting a write/modification action with side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs crm_send_email safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 0nmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For crm_send_email, this is the rule to start with:

crm_send_email Rate-limited

crm_send_email stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "crm_send_email": {
      "limits": [
        {
          "counter": "crm_send_email_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect 0nmcp, apply this rule, and every crm_send_email call is checked against it from then on.

FAQ

Questions about crm_send_email

What does the crm_send_email tool do? +

Send an email to a contact. Supports HTML body, templates, attachments, CC/BCC, threading, and scheduling. It is categorised as a Write tool in the 0nmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on crm_send_email? +

Register the 0n MCP server in PolicyLayer and add a rule for crm_send_email: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches 0nmcp. Nothing to install.

What risk level is crm_send_email? +

crm_send_email is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit crm_send_email? +

Yes. Add a rate_limit block to the crm_send_email rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block crm_send_email completely? +

Set action: deny in the PolicyLayer policy for crm_send_email. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides crm_send_email? +

crm_send_email is provided by the 0n MCP server (0nmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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