Get a paginated list of bounces for a journey email
AI agents call get_journey_email_bounces to retrieve information from Campaign Monitor MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves bounce data for a journey email without altering, deleting, or executing any operations. It is a standard query/fetch operation that returns information about email delivery failures. There are no side effects, no data modifications, and no external execution risks.
From the tool's definition Tool name and description indicate 'Get a paginated list' which is a retrieval operation with no modification or deletion of data. The verb 'get' and 'list' are characteristic of read-only operations.
Attacks that exploit this kind of access
Get a paginated list of bounces for a journey email. It is categorised as a Read tool in the Campaign Monitor MCP MCP Server, which means it retrieves data without modifying state.
Register the Campaign Monitor MCP server in PolicyLayer and add a rule for get_journey_email_bounces: 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 Campaign Monitor MCP. Nothing to install.
get_journey_email_bounces is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_journey_email_bounces 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.
Set action: deny in the PolicyLayer policy for get_journey_email_bounces. 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.
get_journey_email_bounces is provided by the Campaign Monitor MCP server (pauliowest/cmon-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →