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WarmInboxes Free Deliverability Tools

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Free cold email deliverability checks, list tools, inbox planning and original placement research.

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Overview Installation

Overview

WarmInboxes Free Deliverability Tools is an MCP server that gives you free cold email deliverability checks, list validation, inbox planning, and original placement research. Connect your AI assistant directly to these tools instead of switching between apps and pasting data manually.

The server runs remotely at https://warminboxes.com/mcp with no authentication required and nothing to install locally. Current release is v1.0.0. Visit https://warminboxes.com/for-ai for more information.

WarmInboxes Free Deliverability Tools is listed in the Communication category on mcp.site and works with any MCP client including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this server for warminboxes.com, claim this listing to verify ownership and keep the information current.

▸Hosted endpoint — Streamable HTTP · https://warminboxes.com/mcp

Installation

Settings → Connectors → Add custom connector
Name: WarmInboxes Free Deliverability Tools
URL:  https://warminboxes.com/mcp

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