MCP security report
app.mailtester.com
B88/100
Security grade BA few things are worth a closer look before connecting.
Connected ✓9 tools scanned
https://app.mailtester.com/mcp
mediumget_api_key
References secrets or data exfiltration
The tool text references credentials, environment variables, or sending data elsewhere. This can be legitimate, but review what this tool actually accesses.
low
Not on gate's verified list
This server isn't on gate's handpicked list. That's not necessarily bad, but there's no third-party signal about it — review its tools carefully.
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[](https://gateturbo.com/report/71d212bc-b8c1-4630-97d9-481a8b15e682)Scanned 10/11/2026 · This is a point-in-time snapshot of the server’s public tools. Re-scan.
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