Get the SMTP/POP3 password for a Mailosaur server.
AI agents call mailosaur_servers_get_password to retrieve information from Mailosaur MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves credentials (passwords) for email server access, which is a read operation as it queries existing data without side effects. However, the retrieved data is sensitive (authentication credentials), which elevates severity to medium despite the read classification.
From the tool's definition Tool name 'mailosaur_servers_get_password' and description 'Get the SMTP/POP3 password for a Mailosaur server' indicate retrieval of existing credentials. The verb 'Get' is a read operation that queries and returns data without modification.
Attacks that exploit this kind of access
Get the SMTP/POP3 password for a Mailosaur server. It is categorised as a Read tool in the Mailosaur MCP MCP Server, which means it retrieves data without modifying state.
Register the Mailosaur MCP server in PolicyLayer and add a rule for mailosaur_servers_get_password: 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 Mailosaur MCP. Nothing to install.
mailosaur_servers_get_password 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 mailosaur_servers_get_password 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 mailosaur_servers_get_password. 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.
mailosaur_servers_get_password is provided by the Mailosaur MCP server (mrnewdelhi/mailosaur-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.
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