    servers/
        communication/
        mailtester-ninja
  

MN

MailTester Ninja

Unverified Claim & verify → Communication

Verify email addresses live against their mail server and find work emails. Nothing stored.

Visit website ↗ Try Remote Server

Overview Installation

Overview

MailTester Ninja is an MCP server that verifies email addresses live against their mail server and identifies work emails. No data is stored during verification. The server integrates directly with AI assistants, exposing email validation and discovery capabilities as tools that models can invoke in real time.

Hosted remotely at https://mcp.mailtester.ninja/mcp, MailTester Ninja requires no local installation. Authentication uses an API key. The latest release is v1.0.1, and you can learn more at https://mailtester.ninja/integrations/mcp/.

MailTester Ninja is listed in the Communication category on mcp.site and works with MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and others. If you maintain MailTester Ninja, claim this listing to verify ownership and keep information up to date.

▸Hosted endpoint — Streamable HTTP · https://mcp.mailtester.ninja/mcp

Installation

Settings → Connectors → Add custom connector
Name: MailTester Ninja
URL:  https://mcp.mailtester.ninja/mcp

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